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Finding the Fourth Proportional to 379,043.68, 568,466.40 and 112,732.48

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Solution

The fourth proportional to 379,043.68, 568,466.40 and 112,732.48 is: 169,069.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,043.68 : 568,466.40 = 112,732.48 : x
  2. Step 2: Convert to fraction form
    379,043.68/568,466.40 = 112,732.48/x
  3. Step 3: Cross multiply
    379,043.68x = 568,466.40 × 112,732.48
  4. Step 4: Simplify right side
    379,043.68x = 64,084,627,068.67
  5. Step 5: Solve for x
    x = 64,084,627,068.67/379,043.68
  6. Step 6: Final answer
    x = 169,069.24

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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.