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Finding the Fourth Proportional to 249,952.95, 375,016.91 and 72,470.61

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Solution

The fourth proportional to 249,952.95, 375,016.91 and 72,470.61 is: 108,731.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,952.95 : 375,016.91 = 72,470.61 : x
  2. Step 2: Convert to fraction form
    249,952.95/375,016.91 = 72,470.61/x
  3. Step 3: Cross multiply
    249,952.95x = 375,016.91 × 72,470.61
  4. Step 4: Simplify right side
    249,952.95x = 27,177,703,865.66
  5. Step 5: Solve for x
    x = 27,177,703,865.66/249,952.95
  6. Step 6: Final answer
    x = 108,731.28

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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.