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Finding the Fourth Proportional to 226,642.50, 312,773.52 and 124,662.72

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Solution

The fourth proportional to 226,642.50, 312,773.52 and 124,662.72 is: 172,038.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,642.50 : 312,773.52 = 124,662.72 : x
  2. Step 2: Convert to fraction form
    226,642.50/312,773.52 = 124,662.72/x
  3. Step 3: Cross multiply
    226,642.50x = 312,773.52 × 124,662.72
  4. Step 4: Simplify right side
    226,642.50x = 38,991,197,747.17
  5. Step 5: Solve for x
    x = 38,991,197,747.17/226,642.50
  6. Step 6: Final answer
    x = 172,038.33

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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.