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Finding the Fourth Proportional to 96,901.69, 133,686.37 and 71,469.11

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Solution

The fourth proportional to 96,901.69, 133,686.37 and 71,469.11 is: 98,599.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,901.69 : 133,686.37 = 71,469.11 : x
  2. Step 2: Convert to fraction form
    96,901.69/133,686.37 = 71,469.11/x
  3. Step 3: Cross multiply
    96,901.69x = 133,686.37 × 71,469.11
  4. Step 4: Simplify right side
    96,901.69x = 9,554,445,883.03
  5. Step 5: Solve for x
    x = 9,554,445,883.03/96,901.69
  6. Step 6: Final answer
    x = 98,599.37

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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.