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Finding the Fourth Proportional to 129,701.40, 194,400.90 and 59,587.80

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Solution

The fourth proportional to 129,701.40, 194,400.90 and 59,587.80 is: 89,312.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,701.40 : 194,400.90 = 59,587.80 : x
  2. Step 2: Convert to fraction form
    129,701.40/194,400.90 = 59,587.80/x
  3. Step 3: Cross multiply
    129,701.40x = 194,400.90 × 59,587.80
  4. Step 4: Simplify right side
    129,701.40x = 11,583,921,949.02
  5. Step 5: Solve for x
    x = 11,583,921,949.02/129,701.40
  6. Step 6: Final answer
    x = 89,312.24

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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.