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Finding the Fourth Proportional to 104,371.56, 144,031.65 and 56,624.52

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Solution

The fourth proportional to 104,371.56, 144,031.65 and 56,624.52 is: 78,141.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,371.56 : 144,031.65 = 56,624.52 : x
  2. Step 2: Convert to fraction form
    104,371.56/144,031.65 = 56,624.52/x
  3. Step 3: Cross multiply
    104,371.56x = 144,031.65 × 56,624.52
  4. Step 4: Simplify right side
    104,371.56x = 8,155,723,046.06
  5. Step 5: Solve for x
    x = 8,155,723,046.06/104,371.56
  6. Step 6: Final answer
    x = 78,141.24

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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.