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Finding the Fourth Proportional to 249,669, 344,544.44 and 136,491.75

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Solution

The fourth proportional to 249,669, 344,544.44 and 136,491.75 is: 188,359.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,669 : 344,544.44 = 136,491.75 : x
  2. Step 2: Convert to fraction form
    249,669/344,544.44 = 136,491.75/x
  3. Step 3: Cross multiply
    249,669x = 344,544.44 × 136,491.75
  4. Step 4: Simplify right side
    249,669x = 47,027,472,885.91
  5. Step 5: Solve for x
    x = 47,027,472,885.91/249,669
  6. Step 6: Final answer
    x = 188,359.28

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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.