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Finding the Fourth Proportional to 158,616.88, 218,960.84 and 111,056.72

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Solution

The fourth proportional to 158,616.88, 218,960.84 and 111,056.72 is: 153,306.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,616.88 : 218,960.84 = 111,056.72 : x
  2. Step 2: Convert to fraction form
    158,616.88/218,960.84 = 111,056.72/x
  3. Step 3: Cross multiply
    158,616.88x = 218,960.84 × 111,056.72
  4. Step 4: Simplify right side
    158,616.88x = 24,317,072,698.84
  5. Step 5: Solve for x
    x = 24,317,072,698.84/158,616.88
  6. Step 6: Final answer
    x = 153,306.97

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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.