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Finding the Fourth Proportional to 181,798.05, 272,715.69 and 69,572.65

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Solution

The fourth proportional to 181,798.05, 272,715.69 and 69,572.65 is: 104,366.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,798.05 : 272,715.69 = 69,572.65 : x
  2. Step 2: Convert to fraction form
    181,798.05/272,715.69 = 69,572.65/x
  3. Step 3: Cross multiply
    181,798.05x = 272,715.69 × 69,572.65
  4. Step 4: Simplify right side
    181,798.05x = 18,973,553,249.88
  5. Step 5: Solve for x
    x = 18,973,553,249.88/181,798.05
  6. Step 6: Final answer
    x = 104,366.10

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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.