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Finding the Fourth Proportional to 159,702.60, 239,055.54 and 117,630.18

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Solution

The fourth proportional to 159,702.60, 239,055.54 and 117,630.18 is: 176,078.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,702.60 : 239,055.54 = 117,630.18 : x
  2. Step 2: Convert to fraction form
    159,702.60/239,055.54 = 117,630.18/x
  3. Step 3: Cross multiply
    159,702.60x = 239,055.54 × 117,630.18
  4. Step 4: Simplify right side
    159,702.60x = 28,120,146,200.20
  5. Step 5: Solve for x
    x = 28,120,146,200.20/159,702.60
  6. Step 6: Final answer
    x = 176,078.20

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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.