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Finding the Fourth Proportional to 212,282.55, 318,388.08 and 60,468.96

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Solution

The fourth proportional to 212,282.55, 318,388.08 and 60,468.96 is: 90,693.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,282.55 : 318,388.08 = 60,468.96 : x
  2. Step 2: Convert to fraction form
    212,282.55/318,388.08 = 60,468.96/x
  3. Step 3: Cross multiply
    212,282.55x = 318,388.08 × 60,468.96
  4. Step 4: Simplify right side
    212,282.55x = 19,252,597,494.71
  5. Step 5: Solve for x
    x = 19,252,597,494.71/212,282.55
  6. Step 6: Final answer
    x = 90,693.26

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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.