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Finding the Fourth Proportional to 61,141.20, 91,711.80 and 24,205.20

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Solution

The fourth proportional to 61,141.20, 91,711.80 and 24,205.20 is: 36,307.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,141.20 : 91,711.80 = 24,205.20 : x
  2. Step 2: Convert to fraction form
    61,141.20/91,711.80 = 24,205.20/x
  3. Step 3: Cross multiply
    61,141.20x = 91,711.80 × 24,205.20
  4. Step 4: Simplify right side
    61,141.20x = 2,219,902,461.36
  5. Step 5: Solve for x
    x = 2,219,902,461.36/61,141.20
  6. Step 6: Final answer
    x = 36,307.80

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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.