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Finding the Fourth Proportional to 247,471.39, 341,510.34 and 140,039.47

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Solution

The fourth proportional to 247,471.39, 341,510.34 and 140,039.47 is: 193,254.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,471.39 : 341,510.34 = 140,039.47 : x
  2. Step 2: Convert to fraction form
    247,471.39/341,510.34 = 140,039.47/x
  3. Step 3: Cross multiply
    247,471.39x = 341,510.34 × 140,039.47
  4. Step 4: Simplify right side
    247,471.39x = 47,824,927,013.12
  5. Step 5: Solve for x
    x = 47,824,927,013.12/247,471.39
  6. Step 6: Final answer
    x = 193,254.37

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1.5x scale

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.