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Finding the Fourth Proportional to 124,169.46, 186,235.29 and 45,283.74

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Solution

The fourth proportional to 124,169.46, 186,235.29 and 45,283.74 is: 67,918.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,169.46 : 186,235.29 = 45,283.74 : x
  2. Step 2: Convert to fraction form
    124,169.46/186,235.29 = 45,283.74/x
  3. Step 3: Cross multiply
    124,169.46x = 186,235.29 × 45,283.74
  4. Step 4: Simplify right side
    124,169.46x = 8,433,430,451.18
  5. Step 5: Solve for x
    x = 8,433,430,451.18/124,169.46
  6. Step 6: Final answer
    x = 67,918.72

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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.