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Finding the Fourth Proportional to 191,105.99, 286,700.63 and 57,996.66

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Solution

The fourth proportional to 191,105.99, 286,700.63 and 57,996.66 is: 87,007.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,105.99 : 286,700.63 = 57,996.66 : x
  2. Step 2: Convert to fraction form
    191,105.99/286,700.63 = 57,996.66/x
  3. Step 3: Cross multiply
    191,105.99x = 286,700.63 × 57,996.66
  4. Step 4: Simplify right side
    191,105.99x = 16,627,678,669.91
  5. Step 5: Solve for x
    x = 16,627,678,669.91/191,105.99
  6. Step 6: Final answer
    x = 87,007.63

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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.