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Finding the Fourth Proportional to 111,874.32, 154,351.74 and 63,468.24

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Solution

The fourth proportional to 111,874.32, 154,351.74 and 63,468.24 is: 87,566.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,874.32 : 154,351.74 = 63,468.24 : x
  2. Step 2: Convert to fraction form
    111,874.32/154,351.74 = 63,468.24/x
  3. Step 3: Cross multiply
    111,874.32x = 154,351.74 × 63,468.24
  4. Step 4: Simplify right side
    111,874.32x = 9,796,433,278.74
  5. Step 5: Solve for x
    x = 9,796,433,278.74/111,874.32
  6. Step 6: Final answer
    x = 87,566.42

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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.