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Finding the Fourth Proportional to 160,787.52, 241,192.80 and 42,457.68

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Solution

The fourth proportional to 160,787.52, 241,192.80 and 42,457.68 is: 63,689.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,787.52 : 241,192.80 = 42,457.68 : x
  2. Step 2: Convert to fraction form
    160,787.52/241,192.80 = 42,457.68/x
  3. Step 3: Cross multiply
    160,787.52x = 241,192.80 × 42,457.68
  4. Step 4: Simplify right side
    160,787.52x = 10,240,486,720.70
  5. Step 5: Solve for x
    x = 10,240,486,720.70/160,787.52
  6. Step 6: Final answer
    x = 63,689.56

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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.