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Finding the Fourth Proportional to 249,691.76, 344,548.08 and 147,721.04

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Solution

The fourth proportional to 249,691.76, 344,548.08 and 147,721.04 is: 203,839.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,691.76 : 344,548.08 = 147,721.04 : x
  2. Step 2: Convert to fraction form
    249,691.76/344,548.08 = 147,721.04/x
  3. Step 3: Cross multiply
    249,691.76x = 344,548.08 × 147,721.04
  4. Step 4: Simplify right side
    249,691.76x = 50,897,000,707.60
  5. Step 5: Solve for x
    x = 50,897,000,707.60/249,691.76
  6. Step 6: Final answer
    x = 203,839.33

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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.