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Finding the Fourth Proportional to 247,201.71, 370,838.09 and 76,436.73

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Solution

The fourth proportional to 247,201.71, 370,838.09 and 76,436.73 is: 114,666.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,201.71 : 370,838.09 = 76,436.73 : x
  2. Step 2: Convert to fraction form
    247,201.71/370,838.09 = 76,436.73/x
  3. Step 3: Cross multiply
    247,201.71x = 370,838.09 × 76,436.73
  4. Step 4: Simplify right side
    247,201.71x = 28,345,650,576.86
  5. Step 5: Solve for x
    x = 28,345,650,576.86/247,201.71
  6. Step 6: Final answer
    x = 114,666.08

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1.5x scale

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.