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Finding the Fourth Proportional to 120,887.64, 181,260.18 and 36,622.20

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Solution

The fourth proportional to 120,887.64, 181,260.18 and 36,622.20 is: 54,911.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,887.64 : 181,260.18 = 36,622.20 : x
  2. Step 2: Convert to fraction form
    120,887.64/181,260.18 = 36,622.20/x
  3. Step 3: Cross multiply
    120,887.64x = 181,260.18 × 36,622.20
  4. Step 4: Simplify right side
    120,887.64x = 6,638,146,564.00
  5. Step 5: Solve for x
    x = 6,638,146,564.00/120,887.64
  6. Step 6: Final answer
    x = 54,911.71

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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.