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Finding the Fourth Proportional to 108,666.58, 162,986.02 and 42,061.14

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Solution

The fourth proportional to 108,666.58, 162,986.02 and 42,061.14 is: 63,086.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,666.58 : 162,986.02 = 42,061.14 : x
  2. Step 2: Convert to fraction form
    108,666.58/162,986.02 = 42,061.14/x
  3. Step 3: Cross multiply
    108,666.58x = 162,986.02 × 42,061.14
  4. Step 4: Simplify right side
    108,666.58x = 6,855,377,936.70
  5. Step 5: Solve for x
    x = 6,855,377,936.70/108,666.58
  6. Step 6: Final answer
    x = 63,086.35

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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.