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Finding the Fourth Proportional to 347,208.72, 520,854.70 and 122,522.76

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Solution

The fourth proportional to 347,208.72, 520,854.70 and 122,522.76 is: 183,798.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,208.72 : 520,854.70 = 122,522.76 : x
  2. Step 2: Convert to fraction form
    347,208.72/520,854.70 = 122,522.76/x
  3. Step 3: Cross multiply
    347,208.72x = 520,854.70 × 122,522.76
  4. Step 4: Simplify right side
    347,208.72x = 63,816,555,402.97
  5. Step 5: Solve for x
    x = 63,816,555,402.97/347,208.72
  6. Step 6: Final answer
    x = 183,798.83

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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.