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Finding the Fourth Proportional to 165,064.80, 247,582.80 and 54,256.80

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Solution

The fourth proportional to 165,064.80, 247,582.80 and 54,256.80 is: 81,380.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,064.80 : 247,582.80 = 54,256.80 : x
  2. Step 2: Convert to fraction form
    165,064.80/247,582.80 = 54,256.80/x
  3. Step 3: Cross multiply
    165,064.80x = 247,582.80 × 54,256.80
  4. Step 4: Simplify right side
    165,064.80x = 13,433,050,463.04
  5. Step 5: Solve for x
    x = 13,433,050,463.04/165,064.80
  6. Step 6: Final answer
    x = 81,380.47

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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.