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Finding the Fourth Proportional to 155,135.80, 232,818.90 and 61,708.60

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Solution

The fourth proportional to 155,135.80, 232,818.90 and 61,708.60 is: 92,608.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,135.80 : 232,818.90 = 61,708.60 : x
  2. Step 2: Convert to fraction form
    155,135.80/232,818.90 = 61,708.60/x
  3. Step 3: Cross multiply
    155,135.80x = 232,818.90 × 61,708.60
  4. Step 4: Simplify right side
    155,135.80x = 14,366,928,372.54
  5. Step 5: Solve for x
    x = 14,366,928,372.54/155,135.80
  6. Step 6: Final answer
    x = 92,608.72

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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.