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Finding the Fourth Proportional to 249,542.64, 374,202.75 and 72,007.47

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Solution

The fourth proportional to 249,542.64, 374,202.75 and 72,007.47 is: 107,979.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,542.64 : 374,202.75 = 72,007.47 : x
  2. Step 2: Convert to fraction form
    249,542.64/374,202.75 = 72,007.47/x
  3. Step 3: Cross multiply
    249,542.64x = 374,202.75 × 72,007.47
  4. Step 4: Simplify right side
    249,542.64x = 26,945,393,294.54
  5. Step 5: Solve for x
    x = 26,945,393,294.54/249,542.64
  6. Step 6: Final answer
    x = 107,979.11

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.