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Finding the Fourth Proportional to 299,311.80, 448,967.70 and 174,895.80

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Solution

The fourth proportional to 299,311.80, 448,967.70 and 174,895.80 is: 262,343.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,311.80 : 448,967.70 = 174,895.80 : x
  2. Step 2: Convert to fraction form
    299,311.80/448,967.70 = 174,895.80/x
  3. Step 3: Cross multiply
    299,311.80x = 448,967.70 × 174,895.80
  4. Step 4: Simplify right side
    299,311.80x = 78,522,565,065.66
  5. Step 5: Solve for x
    x = 78,522,565,065.66/299,311.80
  6. Step 6: Final answer
    x = 262,343.70

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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.