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Finding the Fourth Proportional to 162,170.80, 223,793.64 and 90,552.08

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Solution

The fourth proportional to 162,170.80, 223,793.64 and 90,552.08 is: 124,960.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,170.80 : 223,793.64 = 90,552.08 : x
  2. Step 2: Convert to fraction form
    162,170.80/223,793.64 = 90,552.08/x
  3. Step 3: Cross multiply
    162,170.80x = 223,793.64 × 90,552.08
  4. Step 4: Simplify right side
    162,170.80x = 20,264,979,592.77
  5. Step 5: Solve for x
    x = 20,264,979,592.77/162,170.80
  6. Step 6: Final answer
    x = 124,960.72

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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.