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Finding the Fourth Proportional to 251,029.80, 376,544.70 and 188,044.20

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Solution

The fourth proportional to 251,029.80, 376,544.70 and 188,044.20 is: 282,066.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,029.80 : 376,544.70 = 188,044.20 : x
  2. Step 2: Convert to fraction form
    251,029.80/376,544.70 = 188,044.20/x
  3. Step 3: Cross multiply
    251,029.80x = 376,544.70 × 188,044.20
  4. Step 4: Simplify right side
    251,029.80x = 70,807,046,875.74
  5. Step 5: Solve for x
    x = 70,807,046,875.74/251,029.80
  6. Step 6: Final answer
    x = 282,066.30

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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.