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Finding the Fourth Proportional to 244,637.20, 366,869.40 and 86,870.80

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Solution

The fourth proportional to 244,637.20, 366,869.40 and 86,870.80 is: 130,275.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    244,637.20 : 366,869.40 = 86,870.80 : x
  2. Step 2: Convert to fraction form
    244,637.20/366,869.40 = 86,870.80/x
  3. Step 3: Cross multiply
    244,637.20x = 366,869.40 × 86,870.80
  4. Step 4: Simplify right side
    244,637.20x = 31,870,238,273.52
  5. Step 5: Solve for x
    x = 31,870,238,273.52/244,637.20
  6. Step 6: Final answer
    x = 130,275.52

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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.