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Finding the Fourth Proportional to 93,401.20, 140,101.80 and 31,071.70

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Solution

The fourth proportional to 93,401.20, 140,101.80 and 31,071.70 is: 46,607.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,401.20 : 140,101.80 = 31,071.70 : x
  2. Step 2: Convert to fraction form
    93,401.20/140,101.80 = 31,071.70/x
  3. Step 3: Cross multiply
    93,401.20x = 140,101.80 × 31,071.70
  4. Step 4: Simplify right side
    93,401.20x = 4,353,201,099.06
  5. Step 5: Solve for x
    x = 4,353,201,099.06/93,401.20
  6. Step 6: Final answer
    x = 46,607.55

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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.