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Finding the Fourth Proportional to 92,857.60, 139,287.20 and 26,299.20

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Solution

The fourth proportional to 92,857.60, 139,287.20 and 26,299.20 is: 39,449.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,857.60 : 139,287.20 = 26,299.20 : x
  2. Step 2: Convert to fraction form
    92,857.60/139,287.20 = 26,299.20/x
  3. Step 3: Cross multiply
    92,857.60x = 139,287.20 × 26,299.20
  4. Step 4: Simplify right side
    92,857.60x = 3,663,141,930.24
  5. Step 5: Solve for x
    x = 3,663,141,930.24/92,857.60
  6. Step 6: Final answer
    x = 39,449.03

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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.