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Finding the Fourth Proportional to 75,262.32, 112,884.84 and 19,862.64

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Solution

The fourth proportional to 75,262.32, 112,884.84 and 19,862.64 is: 29,791.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,262.32 : 112,884.84 = 19,862.64 : x
  2. Step 2: Convert to fraction form
    75,262.32/112,884.84 = 19,862.64/x
  3. Step 3: Cross multiply
    75,262.32x = 112,884.84 × 19,862.64
  4. Step 4: Simplify right side
    75,262.32x = 2,242,190,938.38
  5. Step 5: Solve for x
    x = 2,242,190,938.38/75,262.32
  6. Step 6: Final answer
    x = 29,791.68

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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.