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Finding the Fourth Proportional to 273,554.19, 411,052.91 and 147,287.79

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Solution

The fourth proportional to 273,554.19, 411,052.91 and 147,287.79 is: 221,320.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,554.19 : 411,052.91 = 147,287.79 : x
  2. Step 2: Convert to fraction form
    273,554.19/411,052.91 = 147,287.79/x
  3. Step 3: Cross multiply
    273,554.19x = 411,052.91 × 147,287.79
  4. Step 4: Simplify right side
    273,554.19x = 60,543,073,950.53
  5. Step 5: Solve for x
    x = 60,543,073,950.53/273,554.19
  6. Step 6: Final answer
    x = 221,320.22

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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.