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Finding the Fourth Proportional to 347,571.36, 520,885.44 and 147,641.04

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Solution

The fourth proportional to 347,571.36, 520,885.44 and 147,641.04 is: 221,261.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,571.36 : 520,885.44 = 147,641.04 : x
  2. Step 2: Convert to fraction form
    347,571.36/520,885.44 = 147,641.04/x
  3. Step 3: Cross multiply
    347,571.36x = 520,885.44 × 147,641.04
  4. Step 4: Simplify right side
    347,571.36x = 76,904,068,082.46
  5. Step 5: Solve for x
    x = 76,904,068,082.46/347,571.36
  6. Step 6: Final answer
    x = 221,261.23

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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.