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Finding the Fourth Proportional to 162,965.19, 224,892.45 and 90,373.19

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Solution

The fourth proportional to 162,965.19, 224,892.45 and 90,373.19 is: 124,715.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,965.19 : 224,892.45 = 90,373.19 : x
  2. Step 2: Convert to fraction form
    162,965.19/224,892.45 = 90,373.19/x
  3. Step 3: Cross multiply
    162,965.19x = 224,892.45 × 90,373.19
  4. Step 4: Simplify right side
    162,965.19x = 20,324,247,832.30
  5. Step 5: Solve for x
    x = 20,324,247,832.30/162,965.19
  6. Step 6: Final answer
    x = 124,715.27

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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.