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Finding the Fourth Proportional to 124,488.64, 171,789.12 and 67,896.64

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Solution

The fourth proportional to 124,488.64, 171,789.12 and 67,896.64 is: 93,694.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,488.64 : 171,789.12 = 67,896.64 : x
  2. Step 2: Convert to fraction form
    124,488.64/171,789.12 = 67,896.64/x
  3. Step 3: Cross multiply
    124,488.64x = 171,789.12 × 67,896.64
  4. Step 4: Simplify right side
    124,488.64x = 11,663,904,036.56
  5. Step 5: Solve for x
    x = 11,663,904,036.56/124,488.64
  6. Step 6: Final answer
    x = 93,694.53

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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.