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Finding the Fourth Proportional to 124,298.79, 171,519.54 and 69,842.31

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Solution

The fourth proportional to 124,298.79, 171,519.54 and 69,842.31 is: 96,375.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,298.79 : 171,519.54 = 69,842.31 : x
  2. Step 2: Convert to fraction form
    124,298.79/171,519.54 = 69,842.31/x
  3. Step 3: Cross multiply
    124,298.79x = 171,519.54 × 69,842.31
  4. Step 4: Simplify right side
    124,298.79x = 11,979,320,883.74
  5. Step 5: Solve for x
    x = 11,979,320,883.74/124,298.79
  6. Step 6: Final answer
    x = 96,375.20

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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.