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Finding the Fourth Proportional to 93,288.80, 139,933.20 and 88,234.40

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Solution

The fourth proportional to 93,288.80, 139,933.20 and 88,234.40 is: 132,351.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,288.80 : 139,933.20 = 88,234.40 : x
  2. Step 2: Convert to fraction form
    93,288.80/139,933.20 = 88,234.40/x
  3. Step 3: Cross multiply
    93,288.80x = 139,933.20 × 88,234.40
  4. Step 4: Simplify right side
    93,288.80x = 12,346,921,942.08
  5. Step 5: Solve for x
    x = 12,346,921,942.08/93,288.80
  6. Step 6: Final answer
    x = 132,351.60

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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.