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Finding the Fourth Proportional to 208,496.68, 312,737.18 and 60,748.84

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Solution

The fourth proportional to 208,496.68, 312,737.18 and 60,748.84 is: 91,120.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,496.68 : 312,737.18 = 60,748.84 : x
  2. Step 2: Convert to fraction form
    208,496.68/312,737.18 = 60,748.84/x
  3. Step 3: Cross multiply
    208,496.68x = 312,737.18 × 60,748.84
  4. Step 4: Simplify right side
    208,496.68x = 18,998,420,909.87
  5. Step 5: Solve for x
    x = 18,998,420,909.87/208,496.68
  6. Step 6: Final answer
    x = 91,120.98

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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.