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Finding the Fourth Proportional to 137,902.98, 206,937.08 and 59,017.28

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Solution

The fourth proportional to 137,902.98, 206,937.08 and 59,017.28 is: 88,561.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,902.98 : 206,937.08 = 59,017.28 : x
  2. Step 2: Convert to fraction form
    137,902.98/206,937.08 = 59,017.28/x
  3. Step 3: Cross multiply
    137,902.98x = 206,937.08 × 59,017.28
  4. Step 4: Simplify right side
    137,902.98x = 12,212,863,592.74
  5. Step 5: Solve for x
    x = 12,212,863,592.74/137,902.98
  6. Step 6: Final answer
    x = 88,561.27

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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.