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Finding the Fourth Proportional to 93,233.70, 139,850.55 and 30,904.20

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Solution

The fourth proportional to 93,233.70, 139,850.55 and 30,904.20 is: 46,356.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,233.70 : 139,850.55 = 30,904.20 : x
  2. Step 2: Convert to fraction form
    93,233.70/139,850.55 = 30,904.20/x
  3. Step 3: Cross multiply
    93,233.70x = 139,850.55 × 30,904.20
  4. Step 4: Simplify right side
    93,233.70x = 4,321,969,367.31
  5. Step 5: Solve for x
    x = 4,321,969,367.31/93,233.70
  6. Step 6: Final answer
    x = 46,356.30

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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.