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Finding the Fourth Proportional to 87,999.90, 131,805.45 and 46,398.30

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Solution

The fourth proportional to 87,999.90, 131,805.45 and 46,398.30 is: 69,494.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,999.90 : 131,805.45 = 46,398.30 : x
  2. Step 2: Convert to fraction form
    87,999.90/131,805.45 = 46,398.30/x
  3. Step 3: Cross multiply
    87,999.90x = 131,805.45 × 46,398.30
  4. Step 4: Simplify right side
    87,999.90x = 6,115,548,810.74
  5. Step 5: Solve for x
    x = 6,115,548,810.74/87,999.90
  6. Step 6: Final answer
    x = 69,494.95

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1.5x scale

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.