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Finding the Fourth Proportional to 117,349.60, 176,110.80 and 47,279.20

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Solution

The fourth proportional to 117,349.60, 176,110.80 and 47,279.20 is: 70,953.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,349.60 : 176,110.80 = 47,279.20 : x
  2. Step 2: Convert to fraction form
    117,349.60/176,110.80 = 47,279.20/x
  3. Step 3: Cross multiply
    117,349.60x = 176,110.80 × 47,279.20
  4. Step 4: Simplify right side
    117,349.60x = 8,326,377,735.36
  5. Step 5: Solve for x
    x = 8,326,377,735.36/117,349.60
  6. Step 6: Final answer
    x = 70,953.61

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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.