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Finding the Fourth Proportional to 217,647.28, 300,413.64 and 127,022.32

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Solution

The fourth proportional to 217,647.28, 300,413.64 and 127,022.32 is: 175,326.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,647.28 : 300,413.64 = 127,022.32 : x
  2. Step 2: Convert to fraction form
    217,647.28/300,413.64 = 127,022.32/x
  3. Step 3: Cross multiply
    217,647.28x = 300,413.64 × 127,022.32
  4. Step 4: Simplify right side
    217,647.28x = 38,159,237,512.44
  5. Step 5: Solve for x
    x = 38,159,237,512.44/217,647.28
  6. Step 6: Final answer
    x = 175,326.05

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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.