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Finding the Fourth Proportional to 70,240.68, 105,371.52 and 25,864.02

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Solution

The fourth proportional to 70,240.68, 105,371.52 and 25,864.02 is: 38,799.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,240.68 : 105,371.52 = 25,864.02 : x
  2. Step 2: Convert to fraction form
    70,240.68/105,371.52 = 25,864.02/x
  3. Step 3: Cross multiply
    70,240.68x = 105,371.52 × 25,864.02
  4. Step 4: Simplify right side
    70,240.68x = 2,725,331,100.71
  5. Step 5: Solve for x
    x = 2,725,331,100.71/70,240.68
  6. Step 6: Final answer
    x = 38,799.90

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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.