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Finding the Fourth Proportional to 95,640.10, 143,460.15 and 60,619.30

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Solution

The fourth proportional to 95,640.10, 143,460.15 and 60,619.30 is: 90,928.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,640.10 : 143,460.15 = 60,619.30 : x
  2. Step 2: Convert to fraction form
    95,640.10/143,460.15 = 60,619.30/x
  3. Step 3: Cross multiply
    95,640.10x = 143,460.15 × 60,619.30
  4. Step 4: Simplify right side
    95,640.10x = 8,696,453,870.90
  5. Step 5: Solve for x
    x = 8,696,453,870.90/95,640.10
  6. Step 6: Final answer
    x = 90,928.95

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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.