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Finding the Fourth Proportional to 93,325.20, 139,987.80 and 30,995.70

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Solution

The fourth proportional to 93,325.20, 139,987.80 and 30,995.70 is: 46,493.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,325.20 : 139,987.80 = 30,995.70 : x
  2. Step 2: Convert to fraction form
    93,325.20/139,987.80 = 30,995.70/x
  3. Step 3: Cross multiply
    93,325.20x = 139,987.80 × 30,995.70
  4. Step 4: Simplify right side
    93,325.20x = 4,339,019,852.46
  5. Step 5: Solve for x
    x = 4,339,019,852.46/93,325.20
  6. Step 6: Final answer
    x = 46,493.55

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.