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Finding the Fourth Proportional to 136,043.70, 204,065.55 and 65,930.10

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Solution

The fourth proportional to 136,043.70, 204,065.55 and 65,930.10 is: 98,895.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,043.70 : 204,065.55 = 65,930.10 : x
  2. Step 2: Convert to fraction form
    136,043.70/204,065.55 = 65,930.10/x
  3. Step 3: Cross multiply
    136,043.70x = 204,065.55 × 65,930.10
  4. Step 4: Simplify right side
    136,043.70x = 13,454,062,118.06
  5. Step 5: Solve for x
    x = 13,454,062,118.06/136,043.70
  6. Step 6: Final answer
    x = 98,895.15

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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.