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Finding the Fourth Proportional to 375,764.91, 563,642.61 and 91,455.94

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Solution

The fourth proportional to 375,764.91, 563,642.61 and 91,455.94 is: 137,182.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,764.91 : 563,642.61 = 91,455.94 : x
  2. Step 2: Convert to fraction form
    375,764.91/563,642.61 = 91,455.94/x
  3. Step 3: Cross multiply
    375,764.91x = 563,642.61 × 91,455.94
  4. Step 4: Simplify right side
    375,764.91x = 51,548,464,721.60
  5. Step 5: Solve for x
    x = 51,548,464,721.60/375,764.91
  6. Step 6: Final answer
    x = 137,182.75

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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.