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Finding the Fourth Proportional to 79,335.85, 118,929.10 and 26,708.57

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Solution

The fourth proportional to 79,335.85, 118,929.10 and 26,708.57 is: 40,037.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,335.85 : 118,929.10 = 26,708.57 : x
  2. Step 2: Convert to fraction form
    79,335.85/118,929.10 = 26,708.57/x
  3. Step 3: Cross multiply
    79,335.85x = 118,929.10 × 26,708.57
  4. Step 4: Simplify right side
    79,335.85x = 3,176,426,058.84
  5. Step 5: Solve for x
    x = 3,176,426,058.84/79,335.85
  6. Step 6: Final answer
    x = 40,037.71

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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.