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Finding the Fourth Proportional to 249,416.31, 344,211.87 and 141,986.32

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Solution

The fourth proportional to 249,416.31, 344,211.87 and 141,986.32 is: 195,951.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,416.31 : 344,211.87 = 141,986.32 : x
  2. Step 2: Convert to fraction form
    249,416.31/344,211.87 = 141,986.32/x
  3. Step 3: Cross multiply
    249,416.31x = 344,211.87 × 141,986.32
  4. Step 4: Simplify right side
    249,416.31x = 48,873,376,721.62
  5. Step 5: Solve for x
    x = 48,873,376,721.62/249,416.31
  6. Step 6: Final answer
    x = 195,951.01

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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.