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Finding the Fourth Proportional to 191,657.30, 264,486.98 and 111,131.68

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Solution

The fourth proportional to 191,657.30, 264,486.98 and 111,131.68 is: 153,361.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,657.30 : 264,486.98 = 111,131.68 : x
  2. Step 2: Convert to fraction form
    191,657.30/264,486.98 = 111,131.68/x
  3. Step 3: Cross multiply
    191,657.30x = 264,486.98 × 111,131.68
  4. Step 4: Simplify right side
    191,657.30x = 29,392,882,425.53
  5. Step 5: Solve for x
    x = 29,392,882,425.53/191,657.30
  6. Step 6: Final answer
    x = 153,361.66

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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.