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Finding the Fourth Proportional to 104,387.70, 144,092.38 and 61,946.22

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Solution

The fourth proportional to 104,387.70, 144,092.38 and 61,946.22 is: 85,507.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,387.70 : 144,092.38 = 61,946.22 : x
  2. Step 2: Convert to fraction form
    104,387.70/144,092.38 = 61,946.22/x
  3. Step 3: Cross multiply
    104,387.70x = 144,092.38 × 61,946.22
  4. Step 4: Simplify right side
    104,387.70x = 8,925,978,271.80
  5. Step 5: Solve for x
    x = 8,925,978,271.80/104,387.70
  6. Step 6: Final answer
    x = 85,507.95

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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.