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Finding the Fourth Proportional to 191,767.59, 264,628.49 and 105,723.72

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Solution

The fourth proportional to 191,767.59, 264,628.49 and 105,723.72 is: 145,892.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,767.59 : 264,628.49 = 105,723.72 : x
  2. Step 2: Convert to fraction form
    191,767.59/264,628.49 = 105,723.72/x
  3. Step 3: Cross multiply
    191,767.59x = 264,628.49 × 105,723.72
  4. Step 4: Simplify right side
    191,767.59x = 27,977,507,852.16
  5. Step 5: Solve for x
    x = 27,977,507,852.16/191,767.59
  6. Step 6: Final answer
    x = 145,892.79

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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.