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Finding the Fourth Proportional to 93,432.40, 140,065.28 and 34,254.28

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Solution

The fourth proportional to 93,432.40, 140,065.28 and 34,254.28 is: 51,350.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,432.40 : 140,065.28 = 34,254.28 : x
  2. Step 2: Convert to fraction form
    93,432.40/140,065.28 = 34,254.28/x
  3. Step 3: Cross multiply
    93,432.40x = 140,065.28 × 34,254.28
  4. Step 4: Simplify right side
    93,432.40x = 4,797,835,148.13
  5. Step 5: Solve for x
    x = 4,797,835,148.13/93,432.40
  6. Step 6: Final answer
    x = 51,350.87

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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.