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Finding the Fourth Proportional to 144,424.56, 216,574.88 and 49,664.28

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Solution

The fourth proportional to 144,424.56, 216,574.88 and 49,664.28 is: 74,475.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,424.56 : 216,574.88 = 49,664.28 : x
  2. Step 2: Convert to fraction form
    144,424.56/216,574.88 = 49,664.28/x
  3. Step 3: Cross multiply
    144,424.56x = 216,574.88 × 49,664.28
  4. Step 4: Simplify right side
    144,424.56x = 10,756,035,481.29
  5. Step 5: Solve for x
    x = 10,756,035,481.29/144,424.56
  6. Step 6: Final answer
    x = 74,475.11

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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.