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Finding the Fourth Proportional to 249,959.88, 374,862.69 and 72,479.97

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Solution

The fourth proportional to 249,959.88, 374,862.69 and 72,479.97 is: 108,697.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,959.88 : 374,862.69 = 72,479.97 : x
  2. Step 2: Convert to fraction form
    249,959.88/374,862.69 = 72,479.97/x
  3. Step 3: Cross multiply
    249,959.88x = 374,862.69 × 72,479.97
  4. Step 4: Simplify right side
    249,959.88x = 27,170,036,525.32
  5. Step 5: Solve for x
    x = 27,170,036,525.32/249,959.88
  6. Step 6: Final answer
    x = 108,697.59

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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.