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Finding the Fourth Proportional to 375,106.40, 517,650.28 and 222,153.28

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Solution

The fourth proportional to 375,106.40, 517,650.28 and 222,153.28 is: 306,573.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,106.40 : 517,650.28 = 222,153.28 : x
  2. Step 2: Convert to fraction form
    375,106.40/517,650.28 = 222,153.28/x
  3. Step 3: Cross multiply
    375,106.40x = 517,650.28 × 222,153.28
  4. Step 4: Simplify right side
    375,106.40x = 114,997,707,594.92
  5. Step 5: Solve for x
    x = 114,997,707,594.92/375,106.40
  6. Step 6: Final answer
    x = 306,573.57

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.