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Finding the Fourth Proportional to 66,530.88, 99,843.84 and 49,046.40

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Solution

The fourth proportional to 66,530.88, 99,843.84 and 49,046.40 is: 73,604.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,530.88 : 99,843.84 = 49,046.40 : x
  2. Step 2: Convert to fraction form
    66,530.88/99,843.84 = 49,046.40/x
  3. Step 3: Cross multiply
    66,530.88x = 99,843.84 × 49,046.40
  4. Step 4: Simplify right side
    66,530.88x = 4,896,980,914.18
  5. Step 5: Solve for x
    x = 4,896,980,914.18/66,530.88
  6. Step 6: Final answer
    x = 73,604.63

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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.