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Finding the Fourth Proportional to 136,175.76, 204,086.16 and 69,559.74

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Solution

The fourth proportional to 136,175.76, 204,086.16 and 69,559.74 is: 104,248.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,175.76 : 204,086.16 = 69,559.74 : x
  2. Step 2: Convert to fraction form
    136,175.76/204,086.16 = 69,559.74/x
  3. Step 3: Cross multiply
    136,175.76x = 204,086.16 × 69,559.74
  4. Step 4: Simplify right side
    136,175.76x = 14,196,180,227.20
  5. Step 5: Solve for x
    x = 14,196,180,227.20/136,175.76
  6. Step 6: Final answer
    x = 104,248.95

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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.