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Finding the Fourth Proportional to 79,732.68, 110,031.66 and 45,742.66

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Solution

The fourth proportional to 79,732.68, 110,031.66 and 45,742.66 is: 63,125.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,732.68 : 110,031.66 = 45,742.66 : x
  2. Step 2: Convert to fraction form
    79,732.68/110,031.66 = 45,742.66/x
  3. Step 3: Cross multiply
    79,732.68x = 110,031.66 × 45,742.66
  4. Step 4: Simplify right side
    79,732.68x = 5,033,140,812.62
  5. Step 5: Solve for x
    x = 5,033,140,812.62/79,732.68
  6. Step 6: Final answer
    x = 63,125.19

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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.