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Finding the Fourth Proportional to 316,496.68, 474,670.49 and 91,797.82

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Solution

The fourth proportional to 316,496.68, 474,670.49 and 91,797.82 is: 137,675.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,496.68 : 474,670.49 = 91,797.82 : x
  2. Step 2: Convert to fraction form
    316,496.68/474,670.49 = 91,797.82/x
  3. Step 3: Cross multiply
    316,496.68x = 474,670.49 × 91,797.82
  4. Step 4: Simplify right side
    316,496.68x = 43,573,716,200.33
  5. Step 5: Solve for x
    x = 43,573,716,200.33/316,496.68
  6. Step 6: Final answer
    x = 137,675.11

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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.