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Finding the Fourth Proportional to 144,570.38, 216,870.26 and 49,788.20

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Solution

The fourth proportional to 144,570.38, 216,870.26 and 49,788.20 is: 74,687.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,570.38 : 216,870.26 = 49,788.20 : x
  2. Step 2: Convert to fraction form
    144,570.38/216,870.26 = 49,788.20/x
  3. Step 3: Cross multiply
    144,570.38x = 216,870.26 × 49,788.20
  4. Step 4: Simplify right side
    144,570.38x = 10,797,578,545.64
  5. Step 5: Solve for x
    x = 10,797,578,545.64/144,570.38
  6. Step 6: Final answer
    x = 74,687.35

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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.