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Finding the Fourth Proportional to 268,548.53, 370,589.57 and 147,689.81

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Solution

The fourth proportional to 268,548.53, 370,589.57 and 147,689.81 is: 203,807.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,548.53 : 370,589.57 = 147,689.81 : x
  2. Step 2: Convert to fraction form
    268,548.53/370,589.57 = 147,689.81/x
  3. Step 3: Cross multiply
    268,548.53x = 370,589.57 × 147,689.81
  4. Step 4: Simplify right side
    268,548.53x = 54,732,302,442.83
  5. Step 5: Solve for x
    x = 54,732,302,442.83/268,548.53
  6. Step 6: Final answer
    x = 203,807.87

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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.