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Finding the Fourth Proportional to 103,656, 143,043.52 and 58,333.92

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Solution

The fourth proportional to 103,656, 143,043.52 and 58,333.92 is: 80,499.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,656 : 143,043.52 = 58,333.92 : x
  2. Step 2: Convert to fraction form
    103,656/143,043.52 = 58,333.92/x
  3. Step 3: Cross multiply
    103,656x = 143,043.52 × 58,333.92
  4. Step 4: Simplify right side
    103,656x = 8,344,289,252.20
  5. Step 5: Solve for x
    x = 8,344,289,252.20/103,656
  6. Step 6: Final answer
    x = 80,499.82

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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.