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Finding the Fourth Proportional to 259,335.40, 386,275.73 and 247,201

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Solution

The fourth proportional to 259,335.40, 386,275.73 and 247,201 is: 368,201.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,335.40 : 386,275.73 = 247,201 : x
  2. Step 2: Convert to fraction form
    259,335.40/386,275.73 = 247,201/x
  3. Step 3: Cross multiply
    259,335.40x = 386,275.73 × 247,201
  4. Step 4: Simplify right side
    259,335.40x = 95,487,746,731.73
  5. Step 5: Solve for x
    x = 95,487,746,731.73/259,335.40
  6. Step 6: Final answer
    x = 368,201.74

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.