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Finding the Fourth Proportional to 150,060.90, 207,101.91 and 86,411.10

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Solution

The fourth proportional to 150,060.90, 207,101.91 and 86,411.10 is: 119,257.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,060.90 : 207,101.91 = 86,411.10 : x
  2. Step 2: Convert to fraction form
    150,060.90/207,101.91 = 86,411.10/x
  3. Step 3: Cross multiply
    150,060.90x = 207,101.91 × 86,411.10
  4. Step 4: Simplify right side
    150,060.90x = 17,895,903,855.20
  5. Step 5: Solve for x
    x = 17,895,903,855.20/150,060.90
  6. Step 6: Final answer
    x = 119,257.61

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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.