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Finding the Fourth Proportional to 66,250.61, 99,266.71 and 38,194.32

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Solution

The fourth proportional to 66,250.61, 99,266.71 and 38,194.32 is: 57,228.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,250.61 : 99,266.71 = 38,194.32 : x
  2. Step 2: Convert to fraction form
    66,250.61/99,266.71 = 38,194.32/x
  3. Step 3: Cross multiply
    66,250.61x = 99,266.71 × 38,194.32
  4. Step 4: Simplify right side
    66,250.61x = 3,791,424,487.09
  5. Step 5: Solve for x
    x = 3,791,424,487.09/66,250.61
  6. Step 6: Final answer
    x = 57,228.52

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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.