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Finding the Fourth Proportional to 124,472.58, 186,681.33 and 49,578.90

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Solution

The fourth proportional to 124,472.58, 186,681.33 and 49,578.90 is: 74,357.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,472.58 : 186,681.33 = 49,578.90 : x
  2. Step 2: Convert to fraction form
    124,472.58/186,681.33 = 49,578.90/x
  3. Step 3: Cross multiply
    124,472.58x = 186,681.33 × 49,578.90
  4. Step 4: Simplify right side
    124,472.58x = 9,255,454,991.94
  5. Step 5: Solve for x
    x = 9,255,454,991.94/124,472.58
  6. Step 6: Final answer
    x = 74,357.38

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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.