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Finding the Fourth Proportional to 121,054.69, 181,611.13 and 37,948.69

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Solution

The fourth proportional to 121,054.69, 181,611.13 and 37,948.69 is: 56,932.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,054.69 : 181,611.13 = 37,948.69 : x
  2. Step 2: Convert to fraction form
    121,054.69/181,611.13 = 37,948.69/x
  3. Step 3: Cross multiply
    121,054.69x = 181,611.13 × 37,948.69
  4. Step 4: Simplify right side
    121,054.69x = 6,891,904,472.92
  5. Step 5: Solve for x
    x = 6,891,904,472.92/121,054.69
  6. Step 6: Final answer
    x = 56,932.16

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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.