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Finding the Fourth Proportional to 108,521.52, 149,755.32 and 63,200.88

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Solution

The fourth proportional to 108,521.52, 149,755.32 and 63,200.88 is: 87,214.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,521.52 : 149,755.32 = 63,200.88 : x
  2. Step 2: Convert to fraction form
    108,521.52/149,755.32 = 63,200.88/x
  3. Step 3: Cross multiply
    108,521.52x = 149,755.32 × 63,200.88
  4. Step 4: Simplify right side
    108,521.52x = 9,464,668,008.68
  5. Step 5: Solve for x
    x = 9,464,668,008.68/108,521.52
  6. Step 6: Final answer
    x = 87,214.66

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1.5x scale

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.