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Finding the Fourth Proportional to 93,445.20, 140,167.80 and 30,265.20

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Solution

The fourth proportional to 93,445.20, 140,167.80 and 30,265.20 is: 45,397.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,445.20 : 140,167.80 = 30,265.20 : x
  2. Step 2: Convert to fraction form
    93,445.20/140,167.80 = 30,265.20/x
  3. Step 3: Cross multiply
    93,445.20x = 140,167.80 × 30,265.20
  4. Step 4: Simplify right side
    93,445.20x = 4,242,206,500.56
  5. Step 5: Solve for x
    x = 4,242,206,500.56/93,445.20
  6. Step 6: Final answer
    x = 45,397.80

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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.