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Finding the Fourth Proportional to 67,430.76, 101,159.16 and 25,874.52

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Solution

The fourth proportional to 67,430.76, 101,159.16 and 25,874.52 is: 38,816.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,430.76 : 101,159.16 = 25,874.52 : x
  2. Step 2: Convert to fraction form
    67,430.76/101,159.16 = 25,874.52/x
  3. Step 3: Cross multiply
    67,430.76x = 101,159.16 × 25,874.52
  4. Step 4: Simplify right side
    67,430.76x = 2,617,444,708.60
  5. Step 5: Solve for x
    x = 2,617,444,708.60/67,430.76
  6. Step 6: Final answer
    x = 38,816.78

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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.