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Finding the Fourth Proportional to 117,642.60, 176,425.98 and 38,738.04

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Solution

The fourth proportional to 117,642.60, 176,425.98 and 38,738.04 is: 58,094.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,642.60 : 176,425.98 = 38,738.04 : x
  2. Step 2: Convert to fraction form
    117,642.60/176,425.98 = 38,738.04/x
  3. Step 3: Cross multiply
    117,642.60x = 176,425.98 × 38,738.04
  4. Step 4: Simplify right side
    117,642.60x = 6,834,396,670.28
  5. Step 5: Solve for x
    x = 6,834,396,670.28/117,642.60
  6. Step 6: Final answer
    x = 58,094.57

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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.