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Finding the Fourth Proportional to 66,656.20, 99,984.30 and 60,751.30

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Solution

The fourth proportional to 66,656.20, 99,984.30 and 60,751.30 is: 91,126.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,656.20 : 99,984.30 = 60,751.30 : x
  2. Step 2: Convert to fraction form
    66,656.20/99,984.30 = 60,751.30/x
  3. Step 3: Cross multiply
    66,656.20x = 99,984.30 × 60,751.30
  4. Step 4: Simplify right side
    66,656.20x = 6,074,176,204.59
  5. Step 5: Solve for x
    x = 6,074,176,204.59/66,656.20
  6. Step 6: Final answer
    x = 91,126.95

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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.