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Finding the Fourth Proportional to 66,557.44, 99,955.14 and 63,881.80

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Solution

The fourth proportional to 66,557.44, 99,955.14 and 63,881.80 is: 95,936.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,557.44 : 99,955.14 = 63,881.80 : x
  2. Step 2: Convert to fraction form
    66,557.44/99,955.14 = 63,881.80/x
  3. Step 3: Cross multiply
    66,557.44x = 99,955.14 × 63,881.80
  4. Step 4: Simplify right side
    66,557.44x = 6,385,314,262.45
  5. Step 5: Solve for x
    x = 6,385,314,262.45/66,557.44
  6. Step 6: Final answer
    x = 95,936.90

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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.