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Finding the Fourth Proportional to 249,959.74, 344,944.47 and 136,782.50

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Solution

The fourth proportional to 249,959.74, 344,944.47 and 136,782.50 is: 188,759.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,959.74 : 344,944.47 = 136,782.50 : x
  2. Step 2: Convert to fraction form
    249,959.74/344,944.47 = 136,782.50/x
  3. Step 3: Cross multiply
    249,959.74x = 344,944.47 × 136,782.50
  4. Step 4: Simplify right side
    249,959.74x = 47,182,366,967.78
  5. Step 5: Solve for x
    x = 47,182,366,967.78/249,959.74
  6. Step 6: Final answer
    x = 188,759.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.