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Finding the Fourth Proportional to 144,959.20, 217,438.80 and 62,015.20

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Solution

The fourth proportional to 144,959.20, 217,438.80 and 62,015.20 is: 93,022.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,959.20 : 217,438.80 = 62,015.20 : x
  2. Step 2: Convert to fraction form
    144,959.20/217,438.80 = 62,015.20/x
  3. Step 3: Cross multiply
    144,959.20x = 217,438.80 × 62,015.20
  4. Step 4: Simplify right side
    144,959.20x = 13,484,510,669.76
  5. Step 5: Solve for x
    x = 13,484,510,669.76/144,959.20
  6. Step 6: Final answer
    x = 93,022.80

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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.