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Finding the Fourth Proportional to 66,938.58, 100,249.56 and 58,125.60

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Solution

The fourth proportional to 66,938.58, 100,249.56 and 58,125.60 is: 87,050.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,938.58 : 100,249.56 = 58,125.60 : x
  2. Step 2: Convert to fraction form
    66,938.58/100,249.56 = 58,125.60/x
  3. Step 3: Cross multiply
    66,938.58x = 100,249.56 × 58,125.60
  4. Step 4: Simplify right side
    66,938.58x = 5,827,065,824.74
  5. Step 5: Solve for x
    x = 5,827,065,824.74/66,938.58
  6. Step 6: Final answer
    x = 87,050.93

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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.