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Finding the Fourth Proportional to 115,628.52, 159,593.12 and 70,296.92

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Solution

The fourth proportional to 115,628.52, 159,593.12 and 70,296.92 is: 97,025.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,628.52 : 159,593.12 = 70,296.92 : x
  2. Step 2: Convert to fraction form
    115,628.52/159,593.12 = 70,296.92/x
  3. Step 3: Cross multiply
    115,628.52x = 159,593.12 × 70,296.92
  4. Step 4: Simplify right side
    115,628.52x = 11,218,904,789.19
  5. Step 5: Solve for x
    x = 11,218,904,789.19/115,628.52
  6. Step 6: Final answer
    x = 97,025.41

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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.