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Finding the Fourth Proportional to 169,655,125.20, 254,482,687.80 and 83,561,683.20

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Solution

The fourth proportional to 169,655,125.20, 254,482,687.80 and 83,561,683.20 is: 125,342,524.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,655,125.20 : 254,482,687.80 = 83,561,683.20 : x
  2. Step 2: Convert to fraction form
    169,655,125.20/254,482,687.80 = 83,561,683.20/x
  3. Step 3: Cross multiply
    169,655,125.20x = 254,482,687.80 × 83,561,683.20
  4. Step 4: Simplify right side
    169,655,125.20x = 21,265,001,737,828,108
  5. Step 5: Solve for x
    x = 21,265,001,737,828,108/169,655,125.20
  6. Step 6: Final answer
    x = 125,342,524.80

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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.