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Finding the Fourth Proportional to 375,027.21, 517,538.91 and 202,945.15

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Solution

The fourth proportional to 375,027.21, 517,538.91 and 202,945.15 is: 280,065.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,027.21 : 517,538.91 = 202,945.15 : x
  2. Step 2: Convert to fraction form
    375,027.21/517,538.91 = 202,945.15/x
  3. Step 3: Cross multiply
    375,027.21x = 517,538.91 × 202,945.15
  4. Step 4: Simplify right side
    375,027.21x = 105,032,011,720.79
  5. Step 5: Solve for x
    x = 105,032,011,720.79/375,027.21
  6. Step 6: Final answer
    x = 280,065.04

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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.