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Finding the Fourth Proportional to 242,195.20, 362,601.60 and 148,883.20

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Solution

The fourth proportional to 242,195.20, 362,601.60 and 148,883.20 is: 222,899.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,195.20 : 362,601.60 = 148,883.20 : x
  2. Step 2: Convert to fraction form
    242,195.20/362,601.60 = 148,883.20/x
  3. Step 3: Cross multiply
    242,195.20x = 362,601.60 × 148,883.20
  4. Step 4: Simplify right side
    242,195.20x = 53,985,286,533.12
  5. Step 5: Solve for x
    x = 53,985,286,533.12/242,195.20
  6. Step 6: Final answer
    x = 222,899.90

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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.