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Finding the Fourth Proportional to 113,295.75, 169,615.56 and 85,333.59

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Solution

The fourth proportional to 113,295.75, 169,615.56 and 85,333.59 is: 127,753.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,295.75 : 169,615.56 = 85,333.59 : x
  2. Step 2: Convert to fraction form
    113,295.75/169,615.56 = 85,333.59/x
  3. Step 3: Cross multiply
    113,295.75x = 169,615.56 × 85,333.59
  4. Step 4: Simplify right side
    113,295.75x = 14,473,904,654.66
  5. Step 5: Solve for x
    x = 14,473,904,654.66/113,295.75
  6. Step 6: Final answer
    x = 127,753.29

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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.