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Finding the Fourth Proportional to 99,287.66, 148,847.80 and 43,085.44

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Solution

The fourth proportional to 99,287.66, 148,847.80 and 43,085.44 is: 64,591.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,287.66 : 148,847.80 = 43,085.44 : x
  2. Step 2: Convert to fraction form
    99,287.66/148,847.80 = 43,085.44/x
  3. Step 3: Cross multiply
    99,287.66x = 148,847.80 × 43,085.44
  4. Step 4: Simplify right side
    99,287.66x = 6,413,172,474.48
  5. Step 5: Solve for x
    x = 6,413,172,474.48/99,287.66
  6. Step 6: Final answer
    x = 64,591.84

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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.