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Finding the Fourth Proportional to 101,217.96, 151,919.55 and 51,332.49

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Solution

The fourth proportional to 101,217.96, 151,919.55 and 51,332.49 is: 77,045.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,217.96 : 151,919.55 = 51,332.49 : x
  2. Step 2: Convert to fraction form
    101,217.96/151,919.55 = 51,332.49/x
  3. Step 3: Cross multiply
    101,217.96x = 151,919.55 × 51,332.49
  4. Step 4: Simplify right side
    101,217.96x = 7,798,408,781.18
  5. Step 5: Solve for x
    x = 7,798,408,781.18/101,217.96
  6. Step 6: Final answer
    x = 77,045.70

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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.