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Finding the Fourth Proportional to 207,443.88, 286,294.10 and 126,925.02

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Solution

The fourth proportional to 207,443.88, 286,294.10 and 126,925.02 is: 175,169.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,443.88 : 286,294.10 = 126,925.02 : x
  2. Step 2: Convert to fraction form
    207,443.88/286,294.10 = 126,925.02/x
  3. Step 3: Cross multiply
    207,443.88x = 286,294.10 × 126,925.02
  4. Step 4: Simplify right side
    207,443.88x = 36,337,883,733.76
  5. Step 5: Solve for x
    x = 36,337,883,733.76/207,443.88
  6. Step 6: Final answer
    x = 175,169.71

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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.