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Finding the Fourth Proportional to 162,965.60, 224,874.50 and 90,366.66

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Solution

The fourth proportional to 162,965.60, 224,874.50 and 90,366.66 is: 124,695.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,965.60 : 224,874.50 = 90,366.66 : x
  2. Step 2: Convert to fraction form
    162,965.60/224,874.50 = 90,366.66/x
  3. Step 3: Cross multiply
    162,965.60x = 224,874.50 × 90,366.66
  4. Step 4: Simplify right side
    162,965.60x = 20,321,157,484.17
  5. Step 5: Solve for x
    x = 20,321,157,484.17/162,965.60
  6. Step 6: Final answer
    x = 124,695.99

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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.