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Finding the Fourth Proportional to 136,616.17, 188,531.52 and 75,364.70

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Solution

The fourth proportional to 136,616.17, 188,531.52 and 75,364.70 is: 104,003.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,616.17 : 188,531.52 = 75,364.70 : x
  2. Step 2: Convert to fraction form
    136,616.17/188,531.52 = 75,364.70/x
  3. Step 3: Cross multiply
    136,616.17x = 188,531.52 × 75,364.70
  4. Step 4: Simplify right side
    136,616.17x = 14,208,621,445.34
  5. Step 5: Solve for x
    x = 14,208,621,445.34/136,616.17
  6. Step 6: Final answer
    x = 104,003.95

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1.5x scale

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.