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Finding the Fourth Proportional to 95,680.90, 143,492.16 and 76,916.44

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Solution

The fourth proportional to 95,680.90, 143,492.16 and 76,916.44 is: 115,351.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,680.90 : 143,492.16 = 76,916.44 : x
  2. Step 2: Convert to fraction form
    95,680.90/143,492.16 = 76,916.44/x
  3. Step 3: Cross multiply
    95,680.90x = 143,492.16 × 76,916.44
  4. Step 4: Simplify right side
    95,680.90x = 11,036,906,115.11
  5. Step 5: Solve for x
    x = 11,036,906,115.11/95,680.90
  6. Step 6: Final answer
    x = 115,351.19

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1.5x scale

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.