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Finding the Fourth Proportional to 98,304.32, 135,621.44 and 55,273.92

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Solution

The fourth proportional to 98,304.32, 135,621.44 and 55,273.92 is: 76,256.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,304.32 : 135,621.44 = 55,273.92 : x
  2. Step 2: Convert to fraction form
    98,304.32/135,621.44 = 55,273.92/x
  3. Step 3: Cross multiply
    98,304.32x = 135,621.44 × 55,273.92
  4. Step 4: Simplify right side
    98,304.32x = 7,496,328,624.84
  5. Step 5: Solve for x
    x = 7,496,328,624.84/98,304.32
  6. Step 6: Final answer
    x = 76,256.35

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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.