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Finding the Fourth Proportional to 127,562.90, 176,061.17 and 84,466.42

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Solution

The fourth proportional to 127,562.90, 176,061.17 and 84,466.42 is: 116,579.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,562.90 : 176,061.17 = 84,466.42 : x
  2. Step 2: Convert to fraction form
    127,562.90/176,061.17 = 84,466.42/x
  3. Step 3: Cross multiply
    127,562.90x = 176,061.17 × 84,466.42
  4. Step 4: Simplify right side
    127,562.90x = 14,871,256,730.91
  5. Step 5: Solve for x
    x = 14,871,256,730.91/127,562.90
  6. Step 6: Final answer
    x = 116,579.79

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.