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Finding the Fourth Proportional to 151,758.96, 209,438.96 and 83,789.04

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Solution

The fourth proportional to 151,758.96, 209,438.96 and 83,789.04 is: 115,635.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,758.96 : 209,438.96 = 83,789.04 : x
  2. Step 2: Convert to fraction form
    151,758.96/209,438.96 = 83,789.04/x
  3. Step 3: Cross multiply
    151,758.96x = 209,438.96 × 83,789.04
  4. Step 4: Simplify right side
    151,758.96x = 17,548,689,397.00
  5. Step 5: Solve for x
    x = 17,548,689,397.00/151,758.96
  6. Step 6: Final answer
    x = 115,635.28

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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.