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Finding the Fourth Proportional to 165,079.70, 247,619.55 and 146,052.80

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Solution

The fourth proportional to 165,079.70, 247,619.55 and 146,052.80 is: 219,079.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,079.70 : 247,619.55 = 146,052.80 : x
  2. Step 2: Convert to fraction form
    165,079.70/247,619.55 = 146,052.80/x
  3. Step 3: Cross multiply
    165,079.70x = 247,619.55 × 146,052.80
  4. Step 4: Simplify right side
    165,079.70x = 36,165,528,612.24
  5. Step 5: Solve for x
    x = 36,165,528,612.24/165,079.70
  6. Step 6: Final answer
    x = 219,079.20

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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.