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Finding the Fourth Proportional to 118,507.68, 177,827.12 and 71,006.04

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Solution

The fourth proportional to 118,507.68, 177,827.12 and 71,006.04 is: 106,548.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,507.68 : 177,827.12 = 71,006.04 : x
  2. Step 2: Convert to fraction form
    118,507.68/177,827.12 = 71,006.04/x
  3. Step 3: Cross multiply
    118,507.68x = 177,827.12 × 71,006.04
  4. Step 4: Simplify right side
    118,507.68x = 12,626,799,595.80
  5. Step 5: Solve for x
    x = 12,626,799,595.80/118,507.68
  6. Step 6: Final answer
    x = 106,548.37

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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.