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Finding the Fourth Proportional to 356,087.45, 534,132.13 and 89,847.94

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Solution

The fourth proportional to 356,087.45, 534,132.13 and 89,847.94 is: 134,772.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,087.45 : 534,132.13 = 89,847.94 : x
  2. Step 2: Convert to fraction form
    356,087.45/534,132.13 = 89,847.94/x
  3. Step 3: Cross multiply
    356,087.45x = 534,132.13 × 89,847.94
  4. Step 4: Simplify right side
    356,087.45x = 47,990,671,568.31
  5. Step 5: Solve for x
    x = 47,990,671,568.31/356,087.45
  6. Step 6: Final answer
    x = 134,772.15

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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.