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Finding the Fourth Proportional to 226,609.73, 312,729.06 and 124,643.07

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Solution

The fourth proportional to 226,609.73, 312,729.06 and 124,643.07 is: 172,011.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,609.73 : 312,729.06 = 124,643.07 : x
  2. Step 2: Convert to fraction form
    226,609.73/312,729.06 = 124,643.07/x
  3. Step 3: Cross multiply
    226,609.73x = 312,729.06 × 124,643.07
  4. Step 4: Simplify right side
    226,609.73x = 38,979,510,116.61
  5. Step 5: Solve for x
    x = 38,979,510,116.61/226,609.73
  6. Step 6: Final answer
    x = 172,011.63

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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.