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Finding the Fourth Proportional to 98,714.75, 136,226.90 and 54,002.75

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Solution

The fourth proportional to 98,714.75, 136,226.90 and 54,002.75 is: 74,524.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,714.75 : 136,226.90 = 54,002.75 : x
  2. Step 2: Convert to fraction form
    98,714.75/136,226.90 = 54,002.75/x
  3. Step 3: Cross multiply
    98,714.75x = 136,226.90 × 54,002.75
  4. Step 4: Simplify right side
    98,714.75x = 7,356,627,223.98
  5. Step 5: Solve for x
    x = 7,356,627,223.98/98,714.75
  6. Step 6: Final answer
    x = 74,524.09

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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.