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Finding the Fourth Proportional to 220,430.92, 304,198.18 and 124,935.56

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Solution

The fourth proportional to 220,430.92, 304,198.18 and 124,935.56 is: 172,413.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,430.92 : 304,198.18 = 124,935.56 : x
  2. Step 2: Convert to fraction form
    220,430.92/304,198.18 = 124,935.56/x
  3. Step 3: Cross multiply
    220,430.92x = 304,198.18 × 124,935.56
  4. Step 4: Simplify right side
    220,430.92x = 38,005,169,969.28
  5. Step 5: Solve for x
    x = 38,005,169,969.28/220,430.92
  6. Step 6: Final answer
    x = 172,413.06

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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.