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Finding the Fourth Proportional to 177,388.60, 245,062.84 and 116,279.86

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Solution

The fourth proportional to 177,388.60, 245,062.84 and 116,279.86 is: 160,640.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,388.60 : 245,062.84 = 116,279.86 : x
  2. Step 2: Convert to fraction form
    177,388.60/245,062.84 = 116,279.86/x
  3. Step 3: Cross multiply
    177,388.60x = 245,062.84 × 116,279.86
  4. Step 4: Simplify right side
    177,388.60x = 28,495,872,726.40
  5. Step 5: Solve for x
    x = 28,495,872,726.40/177,388.60
  6. Step 6: Final answer
    x = 160,640.95

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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.