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Finding the Fourth Proportional to 95,661.60, 143,492.40 and 60,640.80

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Solution

The fourth proportional to 95,661.60, 143,492.40 and 60,640.80 is: 90,961.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,661.60 : 143,492.40 = 60,640.80 : x
  2. Step 2: Convert to fraction form
    95,661.60/143,492.40 = 60,640.80/x
  3. Step 3: Cross multiply
    95,661.60x = 143,492.40 × 60,640.80
  4. Step 4: Simplify right side
    95,661.60x = 8,701,493,929.92
  5. Step 5: Solve for x
    x = 8,701,493,929.92/95,661.60
  6. Step 6: Final answer
    x = 90,961.20

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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.