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Finding the Fourth Proportional to 124,465.41, 186,639.80 and 45,524.43

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Solution

The fourth proportional to 124,465.41, 186,639.80 and 45,524.43 is: 68,265.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,465.41 : 186,639.80 = 45,524.43 : x
  2. Step 2: Convert to fraction form
    124,465.41/186,639.80 = 45,524.43/x
  3. Step 3: Cross multiply
    124,465.41x = 186,639.80 × 45,524.43
  4. Step 4: Simplify right side
    124,465.41x = 8,496,670,282.69
  5. Step 5: Solve for x
    x = 8,496,670,282.69/124,465.41
  6. Step 6: Final answer
    x = 68,265.31

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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.