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Finding the Fourth Proportional to 101,881.70, 152,773.39 and 42,701.48

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Solution

The fourth proportional to 101,881.70, 152,773.39 and 42,701.48 is: 64,031.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,881.70 : 152,773.39 = 42,701.48 : x
  2. Step 2: Convert to fraction form
    101,881.70/152,773.39 = 42,701.48/x
  3. Step 3: Cross multiply
    101,881.70x = 152,773.39 × 42,701.48
  4. Step 4: Simplify right side
    101,881.70x = 6,523,649,720.03
  5. Step 5: Solve for x
    x = 6,523,649,720.03/101,881.70
  6. Step 6: Final answer
    x = 64,031.62

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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.