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Finding the Fourth Proportional to 345,173.90, 517,760.85 and 95,855.90

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Solution

The fourth proportional to 345,173.90, 517,760.85 and 95,855.90 is: 143,783.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,173.90 : 517,760.85 = 95,855.90 : x
  2. Step 2: Convert to fraction form
    345,173.90/517,760.85 = 95,855.90/x
  3. Step 3: Cross multiply
    345,173.90x = 517,760.85 × 95,855.90
  4. Step 4: Simplify right side
    345,173.90x = 49,630,432,261.52
  5. Step 5: Solve for x
    x = 49,630,432,261.52/345,173.90
  6. Step 6: Final answer
    x = 143,783.85

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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.