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Finding the Fourth Proportional to 191,940.89, 264,884.13 and 107,056.13

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Solution

The fourth proportional to 191,940.89, 264,884.13 and 107,056.13 is: 147,740.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,940.89 : 264,884.13 = 107,056.13 : x
  2. Step 2: Convert to fraction form
    191,940.89/264,884.13 = 107,056.13/x
  3. Step 3: Cross multiply
    191,940.89x = 264,884.13 × 107,056.13
  4. Step 4: Simplify right side
    191,940.89x = 28,357,468,531.80
  5. Step 5: Solve for x
    x = 28,357,468,531.80/191,940.89
  6. Step 6: Final answer
    x = 147,740.64

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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.