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Finding the Fourth Proportional to 379,068.50, 568,877.12 and 148,291.53

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Solution

The fourth proportional to 379,068.50, 568,877.12 and 148,291.53 is: 222,544.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,068.50 : 568,877.12 = 148,291.53 : x
  2. Step 2: Convert to fraction form
    379,068.50/568,877.12 = 148,291.53/x
  3. Step 3: Cross multiply
    379,068.50x = 568,877.12 × 148,291.53
  4. Step 4: Simplify right side
    379,068.50x = 84,359,659,032.53
  5. Step 5: Solve for x
    x = 84,359,659,032.53/379,068.50
  6. Step 6: Final answer
    x = 222,544.63

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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.