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Finding the Fourth Proportional to 69,791.16, 96,301.26 and 42,938.04

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Solution

The fourth proportional to 69,791.16, 96,301.26 and 42,938.04 is: 59,248.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,791.16 : 96,301.26 = 42,938.04 : x
  2. Step 2: Convert to fraction form
    69,791.16/96,301.26 = 42,938.04/x
  3. Step 3: Cross multiply
    69,791.16x = 96,301.26 × 42,938.04
  4. Step 4: Simplify right side
    69,791.16x = 4,134,987,353.93
  5. Step 5: Solve for x
    x = 4,134,987,353.93/69,791.16
  6. Step 6: Final answer
    x = 59,248.01

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.