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Finding the Fourth Proportional to 144,012.65, 216,019.07 and 49,243.53

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Solution

The fourth proportional to 144,012.65, 216,019.07 and 49,243.53 is: 73,865.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,012.65 : 216,019.07 = 49,243.53 : x
  2. Step 2: Convert to fraction form
    144,012.65/216,019.07 = 49,243.53/x
  3. Step 3: Cross multiply
    144,012.65x = 216,019.07 × 49,243.53
  4. Step 4: Simplify right side
    144,012.65x = 10,637,541,307.90
  5. Step 5: Solve for x
    x = 10,637,541,307.90/144,012.65
  6. Step 6: Final answer
    x = 73,865.33

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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.