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Finding the Fourth Proportional to 249,794.38, 344,719.88 and 140,903.92

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Solution

The fourth proportional to 249,794.38, 344,719.88 and 140,903.92 is: 194,449.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,794.38 : 344,719.88 = 140,903.92 : x
  2. Step 2: Convert to fraction form
    249,794.38/344,719.88 = 140,903.92/x
  3. Step 3: Cross multiply
    249,794.38x = 344,719.88 × 140,903.92
  4. Step 4: Simplify right side
    249,794.38x = 48,572,383,441.28
  5. Step 5: Solve for x
    x = 48,572,383,441.28/249,794.38
  6. Step 6: Final answer
    x = 194,449.46

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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.