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Finding the Fourth Proportional to 316,299.48, 474,473.52 and 91,662.98

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Solution

The fourth proportional to 316,299.48, 474,473.52 and 91,662.98 is: 137,501.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,299.48 : 474,473.52 = 91,662.98 : x
  2. Step 2: Convert to fraction form
    316,299.48/474,473.52 = 91,662.98/x
  3. Step 3: Cross multiply
    316,299.48x = 474,473.52 × 91,662.98
  4. Step 4: Simplify right side
    316,299.48x = 43,491,656,774.29
  5. Step 5: Solve for x
    x = 43,491,656,774.29/316,299.48
  6. Step 6: Final answer
    x = 137,501.51

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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.