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Finding the Fourth Proportional to 95,860.60, 143,790.90 and 60,431.20

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Solution

The fourth proportional to 95,860.60, 143,790.90 and 60,431.20 is: 90,646.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,860.60 : 143,790.90 = 60,431.20 : x
  2. Step 2: Convert to fraction form
    95,860.60/143,790.90 = 60,431.20/x
  3. Step 3: Cross multiply
    95,860.60x = 143,790.90 × 60,431.20
  4. Step 4: Simplify right side
    95,860.60x = 8,689,456,636.08
  5. Step 5: Solve for x
    x = 8,689,456,636.08/95,860.60
  6. Step 6: Final answer
    x = 90,646.80

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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.