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Finding the Fourth Proportional to 165,079.60, 247,619.40 and 153,925.90

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Solution

The fourth proportional to 165,079.60, 247,619.40 and 153,925.90 is: 230,888.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,079.60 : 247,619.40 = 153,925.90 : x
  2. Step 2: Convert to fraction form
    165,079.60/247,619.40 = 153,925.90/x
  3. Step 3: Cross multiply
    165,079.60x = 247,619.40 × 153,925.90
  4. Step 4: Simplify right side
    165,079.60x = 38,115,039,002.46
  5. Step 5: Solve for x
    x = 38,115,039,002.46/165,079.60
  6. Step 6: Final answer
    x = 230,888.85

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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.