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Finding the Fourth Proportional to 249,239, 343,951.26 and 136,062.92

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Solution

The fourth proportional to 249,239, 343,951.26 and 136,062.92 is: 187,767.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,239 : 343,951.26 = 136,062.92 : x
  2. Step 2: Convert to fraction form
    249,239/343,951.26 = 136,062.92/x
  3. Step 3: Cross multiply
    249,239x = 343,951.26 × 136,062.92
  4. Step 4: Simplify right side
    249,239x = 46,799,012,773.28
  5. Step 5: Solve for x
    x = 46,799,012,773.28/249,239
  6. Step 6: Final answer
    x = 187,767.62

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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.