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Finding the Fourth Proportional to 71,407, 98,500.62 and 44,536.60

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Solution

The fourth proportional to 71,407, 98,500.62 and 44,536.60 is: 61,434.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,407 : 98,500.62 = 44,536.60 : x
  2. Step 2: Convert to fraction form
    71,407/98,500.62 = 44,536.60/x
  3. Step 3: Cross multiply
    71,407x = 98,500.62 × 44,536.60
  4. Step 4: Simplify right side
    71,407x = 4,386,882,712.69
  5. Step 5: Solve for x
    x = 4,386,882,712.69/71,407
  6. Step 6: Final answer
    x = 61,434.91

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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.