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Finding the Fourth Proportional to 113,305.71, 169,969.66 and 41,278.20

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Solution

The fourth proportional to 113,305.71, 169,969.66 and 41,278.20 is: 61,921.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,305.71 : 169,969.66 = 41,278.20 : x
  2. Step 2: Convert to fraction form
    113,305.71/169,969.66 = 41,278.20/x
  3. Step 3: Cross multiply
    113,305.71x = 169,969.66 × 41,278.20
  4. Step 4: Simplify right side
    113,305.71x = 7,016,041,413.02
  5. Step 5: Solve for x
    x = 7,016,041,413.02/113,305.71
  6. Step 6: Final answer
    x = 61,921.34

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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.