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Finding the Fourth Proportional to 155,425.80, 233,234.70 and 61,921.80

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Solution

The fourth proportional to 155,425.80, 233,234.70 and 61,921.80 is: 92,920.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,425.80 : 233,234.70 = 61,921.80 : x
  2. Step 2: Convert to fraction form
    155,425.80/233,234.70 = 61,921.80/x
  3. Step 3: Cross multiply
    155,425.80x = 233,234.70 × 61,921.80
  4. Step 4: Simplify right side
    155,425.80x = 14,442,312,446.46
  5. Step 5: Solve for x
    x = 14,442,312,446.46/155,425.80
  6. Step 6: Final answer
    x = 92,920.95

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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.