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Finding the Fourth Proportional to 191,765.37, 264,637.99 and 105,727.39

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Solution

The fourth proportional to 191,765.37, 264,637.99 and 105,727.39 is: 145,904.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,765.37 : 264,637.99 = 105,727.39 : x
  2. Step 2: Convert to fraction form
    191,765.37/264,637.99 = 105,727.39/x
  3. Step 3: Cross multiply
    191,765.37x = 264,637.99 × 105,727.39
  4. Step 4: Simplify right side
    191,765.37x = 27,979,484,341.98
  5. Step 5: Solve for x
    x = 27,979,484,341.98/191,765.37
  6. Step 6: Final answer
    x = 145,904.78

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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.