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Finding the Fourth Proportional to 108,663.62, 149,959.69 and 63,334.31

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Solution

The fourth proportional to 108,663.62, 149,959.69 and 63,334.31 is: 87,403.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,663.62 : 149,959.69 = 63,334.31 : x
  2. Step 2: Convert to fraction form
    108,663.62/149,959.69 = 63,334.31/x
  3. Step 3: Cross multiply
    108,663.62x = 149,959.69 × 63,334.31
  4. Step 4: Simplify right side
    108,663.62x = 9,497,592,585.83
  5. Step 5: Solve for x
    x = 9,497,592,585.83/108,663.62
  6. Step 6: Final answer
    x = 87,403.61

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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.