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Finding the Fourth Proportional to 347,707.75, 521,636.54 and 107,816.82

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Solution

The fourth proportional to 347,707.75, 521,636.54 and 107,816.82 is: 161,748.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,707.75 : 521,636.54 = 107,816.82 : x
  2. Step 2: Convert to fraction form
    347,707.75/521,636.54 = 107,816.82/x
  3. Step 3: Cross multiply
    347,707.75x = 521,636.54 × 107,816.82
  4. Step 4: Simplify right side
    347,707.75x = 56,241,193,208.14
  5. Step 5: Solve for x
    x = 56,241,193,208.14/347,707.75
  6. Step 6: Final answer
    x = 161,748.46

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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.