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Finding the Fourth Proportional to 229,615.86, 344,580.53 and 79,854.66

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Solution

The fourth proportional to 229,615.86, 344,580.53 and 79,854.66 is: 119,836.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,615.86 : 344,580.53 = 79,854.66 : x
  2. Step 2: Convert to fraction form
    229,615.86/344,580.53 = 79,854.66/x
  3. Step 3: Cross multiply
    229,615.86x = 344,580.53 × 79,854.66
  4. Step 4: Simplify right side
    229,615.86x = 27,516,361,115.68
  5. Step 5: Solve for x
    x = 27,516,361,115.68/229,615.86
  6. Step 6: Final answer
    x = 119,836.50

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.