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Finding the Fourth Proportional to 66,151.80, 98,984.70 and 48,655.80

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Solution

The fourth proportional to 66,151.80, 98,984.70 and 48,655.80 is: 72,804.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,151.80 : 98,984.70 = 48,655.80 : x
  2. Step 2: Convert to fraction form
    66,151.80/98,984.70 = 48,655.80/x
  3. Step 3: Cross multiply
    66,151.80x = 98,984.70 × 48,655.80
  4. Step 4: Simplify right side
    66,151.80x = 4,816,179,766.26
  5. Step 5: Solve for x
    x = 4,816,179,766.26/66,151.80
  6. Step 6: Final answer
    x = 72,804.97

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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.