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Finding the Fourth Proportional to 75,100.57, 103,603.76 and 43,251.00

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Solution

The fourth proportional to 75,100.57, 103,603.76 and 43,251.00 is: 59,666.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,100.57 : 103,603.76 = 43,251.00 : x
  2. Step 2: Convert to fraction form
    75,100.57/103,603.76 = 43,251.00/x
  3. Step 3: Cross multiply
    75,100.57x = 103,603.76 × 43,251.00
  4. Step 4: Simplify right side
    75,100.57x = 4,480,965,781.18
  5. Step 5: Solve for x
    x = 4,480,965,781.18/75,100.57
  6. Step 6: Final answer
    x = 59,666.20

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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.