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Finding the Fourth Proportional to 73,781.34, 101,860.20 and 48,703.74

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Solution

The fourth proportional to 73,781.34, 101,860.20 and 48,703.74 is: 67,238.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,781.34 : 101,860.20 = 48,703.74 : x
  2. Step 2: Convert to fraction form
    73,781.34/101,860.20 = 48,703.74/x
  3. Step 3: Cross multiply
    73,781.34x = 101,860.20 × 48,703.74
  4. Step 4: Simplify right side
    73,781.34x = 4,960,972,697.15
  5. Step 5: Solve for x
    x = 4,960,972,697.15/73,781.34
  6. Step 6: Final answer
    x = 67,238.85

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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.