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Finding the Fourth Proportional to 127,813.92, 191,773.52 and 52,949.12

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Solution

The fourth proportional to 127,813.92, 191,773.52 and 52,949.12 is: 79,445.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,813.92 : 191,773.52 = 52,949.12 : x
  2. Step 2: Convert to fraction form
    127,813.92/191,773.52 = 52,949.12/x
  3. Step 3: Cross multiply
    127,813.92x = 191,773.52 × 52,949.12
  4. Step 4: Simplify right side
    127,813.92x = 10,154,239,123.30
  5. Step 5: Solve for x
    x = 10,154,239,123.30/127,813.92
  6. Step 6: Final answer
    x = 79,445.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.