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Finding the Fourth Proportional to 347,657.96, 479,768.18 and 188,681.96

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Solution

The fourth proportional to 347,657.96, 479,768.18 and 188,681.96 is: 260,381.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,657.96 : 479,768.18 = 188,681.96 : x
  2. Step 2: Convert to fraction form
    347,657.96/479,768.18 = 188,681.96/x
  3. Step 3: Cross multiply
    347,657.96x = 479,768.18 × 188,681.96
  4. Step 4: Simplify right side
    347,657.96x = 90,523,600,548.03
  5. Step 5: Solve for x
    x = 90,523,600,548.03/347,657.96
  6. Step 6: Final answer
    x = 260,381.21

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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.