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Finding the Fourth Proportional to 93,302.57, 139,949.61 and 30,125.61

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Solution

The fourth proportional to 93,302.57, 139,949.61 and 30,125.61 is: 45,187.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,302.57 : 139,949.61 = 30,125.61 : x
  2. Step 2: Convert to fraction form
    93,302.57/139,949.61 = 30,125.61/x
  3. Step 3: Cross multiply
    93,302.57x = 139,949.61 × 30,125.61
  4. Step 4: Simplify right side
    93,302.57x = 4,216,067,257.54
  5. Step 5: Solve for x
    x = 4,216,067,257.54/93,302.57
  6. Step 6: Final answer
    x = 45,187.04

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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.