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Finding the Fourth Proportional to 316,494.68, 474,667.49 and 91,795.82

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Solution

The fourth proportional to 316,494.68, 474,667.49 and 91,795.82 is: 137,672.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,494.68 : 474,667.49 = 91,795.82 : x
  2. Step 2: Convert to fraction form
    316,494.68/474,667.49 = 91,795.82/x
  3. Step 3: Cross multiply
    316,494.68x = 474,667.49 × 91,795.82
  4. Step 4: Simplify right side
    316,494.68x = 43,572,489,328.04
  5. Step 5: Solve for x
    x = 43,572,489,328.04/316,494.68
  6. Step 6: Final answer
    x = 137,672.11

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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.