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Finding the Fourth Proportional to 117,649.39, 176,501.76 and 38,763.61

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Solution

The fourth proportional to 117,649.39, 176,501.76 and 38,763.61 is: 58,154.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,649.39 : 176,501.76 = 38,763.61 : x
  2. Step 2: Convert to fraction form
    117,649.39/176,501.76 = 38,763.61/x
  3. Step 3: Cross multiply
    117,649.39x = 176,501.76 × 38,763.61
  4. Step 4: Simplify right side
    117,649.39x = 6,841,844,947.70
  5. Step 5: Solve for x
    x = 6,841,844,947.70/117,649.39
  6. Step 6: Final answer
    x = 58,154.53

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.