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Finding the Fourth Proportional to 180,507.60, 270,758.16 and 73,868.40

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Solution

The fourth proportional to 180,507.60, 270,758.16 and 73,868.40 is: 110,801.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,507.60 : 270,758.16 = 73,868.40 : x
  2. Step 2: Convert to fraction form
    180,507.60/270,758.16 = 73,868.40/x
  3. Step 3: Cross multiply
    180,507.60x = 270,758.16 × 73,868.40
  4. Step 4: Simplify right side
    180,507.60x = 20,000,472,066.14
  5. Step 5: Solve for x
    x = 20,000,472,066.14/180,507.60
  6. Step 6: Final answer
    x = 110,801.27

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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.