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Finding the Fourth Proportional to 75,066.93, 112,729.14 and 66,652.41

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Solution

The fourth proportional to 75,066.93, 112,729.14 and 66,652.41 is: 100,092.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,066.93 : 112,729.14 = 66,652.41 : x
  2. Step 2: Convert to fraction form
    75,066.93/112,729.14 = 66,652.41/x
  3. Step 3: Cross multiply
    75,066.93x = 112,729.14 × 66,652.41
  4. Step 4: Simplify right side
    75,066.93x = 7,513,668,858.23
  5. Step 5: Solve for x
    x = 7,513,668,858.23/75,066.93
  6. Step 6: Final answer
    x = 100,092.93

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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.