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Finding the Fourth Proportional to 61,103.88, 91,626.84 and 23,681.40

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Solution

The fourth proportional to 61,103.88, 91,626.84 and 23,681.40 is: 35,510.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,103.88 : 91,626.84 = 23,681.40 : x
  2. Step 2: Convert to fraction form
    61,103.88/91,626.84 = 23,681.40/x
  3. Step 3: Cross multiply
    61,103.88x = 91,626.84 × 23,681.40
  4. Step 4: Simplify right side
    61,103.88x = 2,169,851,848.78
  5. Step 5: Solve for x
    x = 2,169,851,848.78/61,103.88
  6. Step 6: Final answer
    x = 35,510.87

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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.