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Finding the Fourth Proportional to 120,798.60, 181,025.10 and 88,960.20

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Solution

The fourth proportional to 120,798.60, 181,025.10 and 88,960.20 is: 133,313.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,798.60 : 181,025.10 = 88,960.20 : x
  2. Step 2: Convert to fraction form
    120,798.60/181,025.10 = 88,960.20/x
  3. Step 3: Cross multiply
    120,798.60x = 181,025.10 × 88,960.20
  4. Step 4: Simplify right side
    120,798.60x = 16,104,029,101.02
  5. Step 5: Solve for x
    x = 16,104,029,101.02/120,798.60
  6. Step 6: Final answer
    x = 133,313.04

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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.