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Finding the Fourth Proportional to 185,792.76, 278,617.82 and 79,109.08

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Solution

The fourth proportional to 185,792.76, 278,617.82 and 79,109.08 is: 118,633.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,792.76 : 278,617.82 = 79,109.08 : x
  2. Step 2: Convert to fraction form
    185,792.76/278,617.82 = 79,109.08/x
  3. Step 3: Cross multiply
    185,792.76x = 278,617.82 × 79,109.08
  4. Step 4: Simplify right side
    185,792.76x = 22,041,198,319.72
  5. Step 5: Solve for x
    x = 22,041,198,319.72/185,792.76
  6. Step 6: Final answer
    x = 118,633.25

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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.