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Finding the Fourth Proportional to 127,211.34, 175,531.17 and 73,503.48

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Solution

The fourth proportional to 127,211.34, 175,531.17 and 73,503.48 is: 101,422.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,211.34 : 175,531.17 = 73,503.48 : x
  2. Step 2: Convert to fraction form
    127,211.34/175,531.17 = 73,503.48/x
  3. Step 3: Cross multiply
    127,211.34x = 175,531.17 × 73,503.48
  4. Step 4: Simplify right side
    127,211.34x = 12,902,151,843.47
  5. Step 5: Solve for x
    x = 12,902,151,843.47/127,211.34
  6. Step 6: Final answer
    x = 101,422.97

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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.