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Finding the Fourth Proportional to 226,393.48, 312,402.60 and 124,417.72

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Solution

The fourth proportional to 226,393.48, 312,402.60 and 124,417.72 is: 171,685.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,393.48 : 312,402.60 = 124,417.72 : x
  2. Step 2: Convert to fraction form
    226,393.48/312,402.60 = 124,417.72/x
  3. Step 3: Cross multiply
    226,393.48x = 312,402.60 × 124,417.72
  4. Step 4: Simplify right side
    226,393.48x = 38,868,419,214.07
  5. Step 5: Solve for x
    x = 38,868,419,214.07/226,393.48
  6. Step 6: Final answer
    x = 171,685.24

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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.