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Finding the Fourth Proportional to 248,468.20, 373,091.10 and 143,492.20

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Solution

The fourth proportional to 248,468.20, 373,091.10 and 143,492.20 is: 215,462.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,468.20 : 373,091.10 = 143,492.20 : x
  2. Step 2: Convert to fraction form
    248,468.20/373,091.10 = 143,492.20/x
  3. Step 3: Cross multiply
    248,468.20x = 373,091.10 × 143,492.20
  4. Step 4: Simplify right side
    248,468.20x = 53,535,662,739.42
  5. Step 5: Solve for x
    x = 53,535,662,739.42/248,468.20
  6. Step 6: Final answer
    x = 215,462.83

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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.