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Finding the Fourth Proportional to 275,643.30, 413,580.15 and 88,712.10

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Solution

The fourth proportional to 275,643.30, 413,580.15 and 88,712.10 is: 133,105.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,643.30 : 413,580.15 = 88,712.10 : x
  2. Step 2: Convert to fraction form
    275,643.30/413,580.15 = 88,712.10/x
  3. Step 3: Cross multiply
    275,643.30x = 413,580.15 × 88,712.10
  4. Step 4: Simplify right side
    275,643.30x = 36,689,563,624.82
  5. Step 5: Solve for x
    x = 36,689,563,624.82/275,643.30
  6. Step 6: Final answer
    x = 133,105.23

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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.