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Finding the Fourth Proportional to 109,530.98, 151,152.78 and 59,229.98

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Solution

The fourth proportional to 109,530.98, 151,152.78 and 59,229.98 is: 81,737.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,530.98 : 151,152.78 = 59,229.98 : x
  2. Step 2: Convert to fraction form
    109,530.98/151,152.78 = 59,229.98/x
  3. Step 3: Cross multiply
    109,530.98x = 151,152.78 × 59,229.98
  4. Step 4: Simplify right side
    109,530.98x = 8,952,777,019.75
  5. Step 5: Solve for x
    x = 8,952,777,019.75/109,530.98
  6. Step 6: Final answer
    x = 81,737.39

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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.