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Finding the Fourth Proportional to 371,040.50, 512,036.16 and 201,275.30

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Solution

The fourth proportional to 371,040.50, 512,036.16 and 201,275.30 is: 277,760.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,040.50 : 512,036.16 = 201,275.30 : x
  2. Step 2: Convert to fraction form
    371,040.50/512,036.16 = 201,275.30/x
  3. Step 3: Cross multiply
    371,040.50x = 512,036.16 × 201,275.30
  4. Step 4: Simplify right side
    371,040.50x = 103,060,231,714.85
  5. Step 5: Solve for x
    x = 103,060,231,714.85/371,040.50
  6. Step 6: Final answer
    x = 277,760.06

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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.