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Finding the Fourth Proportional to 347,105.13, 520,669.15 and 119,398.46

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Solution

The fourth proportional to 347,105.13, 520,669.15 and 119,398.46 is: 179,101.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,105.13 : 520,669.15 = 119,398.46 : x
  2. Step 2: Convert to fraction form
    347,105.13/520,669.15 = 119,398.46/x
  3. Step 3: Cross multiply
    347,105.13x = 520,669.15 × 119,398.46
  4. Step 4: Simplify right side
    347,105.13x = 62,167,094,679.51
  5. Step 5: Solve for x
    x = 62,167,094,679.51/347,105.13
  6. Step 6: Final answer
    x = 179,101.63

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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.