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Finding the Fourth Proportional to 605,872.14, 908,805.47 and 156,554.81

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Solution

The fourth proportional to 605,872.14, 908,805.47 and 156,554.81 is: 234,831.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,872.14 : 908,805.47 = 156,554.81 : x
  2. Step 2: Convert to fraction form
    605,872.14/908,805.47 = 156,554.81/x
  3. Step 3: Cross multiply
    605,872.14x = 908,805.47 × 156,554.81
  4. Step 4: Simplify right side
    605,872.14x = 142,277,866,644.65
  5. Step 5: Solve for x
    x = 142,277,866,644.65/605,872.14
  6. Step 6: Final answer
    x = 234,831.51

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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.