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Finding the Fourth Proportional to 200,464.40, 276,641.16 and 111,040.40

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Solution

The fourth proportional to 200,464.40, 276,641.16 and 111,040.40 is: 153,235.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,464.40 : 276,641.16 = 111,040.40 : x
  2. Step 2: Convert to fraction form
    200,464.40/276,641.16 = 111,040.40/x
  3. Step 3: Cross multiply
    200,464.40x = 276,641.16 × 111,040.40
  4. Step 4: Simplify right side
    200,464.40x = 30,718,345,062.86
  5. Step 5: Solve for x
    x = 30,718,345,062.86/200,464.40
  6. Step 6: Final answer
    x = 153,235.91

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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.