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Finding the Fourth Proportional to 98,689, 147,872.22 and 59,152.36

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Solution

The fourth proportional to 98,689, 147,872.22 and 59,152.36 is: 88,631.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,689 : 147,872.22 = 59,152.36 : x
  2. Step 2: Convert to fraction form
    98,689/147,872.22 = 59,152.36/x
  3. Step 3: Cross multiply
    98,689x = 147,872.22 × 59,152.36
  4. Step 4: Simplify right side
    98,689x = 8,746,990,791.44
  5. Step 5: Solve for x
    x = 8,746,990,791.44/98,689
  6. Step 6: Final answer
    x = 88,631.87

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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.