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Finding the Fourth Proportional to 124,449.86, 186,734.86 and 61,235.70

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Solution

The fourth proportional to 124,449.86, 186,734.86 and 61,235.70 is: 91,883.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,449.86 : 186,734.86 = 61,235.70 : x
  2. Step 2: Convert to fraction form
    124,449.86/186,734.86 = 61,235.70/x
  3. Step 3: Cross multiply
    124,449.86x = 186,734.86 × 61,235.70
  4. Step 4: Simplify right side
    124,449.86x = 11,434,839,866.50
  5. Step 5: Solve for x
    x = 11,434,839,866.50/124,449.86
  6. Step 6: Final answer
    x = 91,883.11

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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.