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Finding the Fourth Proportional to 124,169.66, 186,282.25 and 45,283.89

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Solution

The fourth proportional to 124,169.66, 186,282.25 and 45,283.89 is: 67,935.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,169.66 : 186,282.25 = 45,283.89 : x
  2. Step 2: Convert to fraction form
    124,169.66/186,282.25 = 45,283.89/x
  3. Step 3: Cross multiply
    124,169.66x = 186,282.25 × 45,283.89
  4. Step 4: Simplify right side
    124,169.66x = 8,435,583,986.54
  5. Step 5: Solve for x
    x = 8,435,583,986.54/124,169.66
  6. Step 6: Final answer
    x = 67,935.95

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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.