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Finding the Fourth Proportional to 120,699.72, 181,008.45 and 41,795.46

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Solution

The fourth proportional to 120,699.72, 181,008.45 and 41,795.46 is: 62,678.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,699.72 : 181,008.45 = 41,795.46 : x
  2. Step 2: Convert to fraction form
    120,699.72/181,008.45 = 41,795.46/x
  3. Step 3: Cross multiply
    120,699.72x = 181,008.45 × 41,795.46
  4. Step 4: Simplify right side
    120,699.72x = 7,565,331,431.64
  5. Step 5: Solve for x
    x = 7,565,331,431.64/120,699.72
  6. Step 6: Final answer
    x = 62,678.95

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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.