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Finding the Fourth Proportional to 162,211.13, 223,824.14 and 90,591.44

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Solution

The fourth proportional to 162,211.13, 223,824.14 and 90,591.44 is: 125,000.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,211.13 : 223,824.14 = 90,591.44 : x
  2. Step 2: Convert to fraction form
    162,211.13/223,824.14 = 90,591.44/x
  3. Step 3: Cross multiply
    162,211.13x = 223,824.14 × 90,591.44
  4. Step 4: Simplify right side
    162,211.13x = 20,276,549,577.28
  5. Step 5: Solve for x
    x = 20,276,549,577.28/162,211.13
  6. Step 6: Final answer
    x = 125,000.98

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1.5x scale

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.