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Finding the Fourth Proportional to 266,065.45, 367,121.97 and 157,187.52

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Solution

The fourth proportional to 266,065.45, 367,121.97 and 157,187.52 is: 216,890.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,065.45 : 367,121.97 = 157,187.52 : x
  2. Step 2: Convert to fraction form
    266,065.45/367,121.97 = 157,187.52/x
  3. Step 3: Cross multiply
    266,065.45x = 367,121.97 × 157,187.52
  4. Step 4: Simplify right side
    266,065.45x = 57,706,992,001.81
  5. Step 5: Solve for x
    x = 57,706,992,001.81/266,065.45
  6. Step 6: Final answer
    x = 216,890.21

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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.