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Finding the Fourth Proportional to 249,244.88, 343,959.37 and 136,068.80

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Solution

The fourth proportional to 249,244.88, 343,959.37 and 136,068.80 is: 187,775.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,244.88 : 343,959.37 = 136,068.80 : x
  2. Step 2: Convert to fraction form
    249,244.88/343,959.37 = 136,068.80/x
  3. Step 3: Cross multiply
    249,244.88x = 343,959.37 × 136,068.80
  4. Step 4: Simplify right side
    249,244.88x = 46,802,136,664.69
  5. Step 5: Solve for x
    x = 46,802,136,664.69/249,244.88
  6. Step 6: Final answer
    x = 187,775.72

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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.