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Finding the Fourth Proportional to 162,663.72, 224,475.88 and 91,043.74

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Solution

The fourth proportional to 162,663.72, 224,475.88 and 91,043.74 is: 125,640.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,663.72 : 224,475.88 = 91,043.74 : x
  2. Step 2: Convert to fraction form
    162,663.72/224,475.88 = 91,043.74/x
  3. Step 3: Cross multiply
    162,663.72x = 224,475.88 × 91,043.74
  4. Step 4: Simplify right side
    162,663.72x = 20,437,123,654.99
  5. Step 5: Solve for x
    x = 20,437,123,654.99/162,663.72
  6. Step 6: Final answer
    x = 125,640.33

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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.