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Finding the Fourth Proportional to 89,594.40, 134,276.40 and 68,714.40

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Solution

The fourth proportional to 89,594.40, 134,276.40 and 68,714.40 is: 102,983.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,594.40 : 134,276.40 = 68,714.40 : x
  2. Step 2: Convert to fraction form
    89,594.40/134,276.40 = 68,714.40/x
  3. Step 3: Cross multiply
    89,594.40x = 134,276.40 × 68,714.40
  4. Step 4: Simplify right side
    89,594.40x = 9,226,722,260.16
  5. Step 5: Solve for x
    x = 9,226,722,260.16/89,594.40
  6. Step 6: Final answer
    x = 102,983.25

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.