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Finding the Fourth Proportional to 121,069, 181,575.42 and 46,162.36

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Solution

The fourth proportional to 121,069, 181,575.42 and 46,162.36 is: 69,232.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,069 : 181,575.42 = 46,162.36 : x
  2. Step 2: Convert to fraction form
    121,069/181,575.42 = 46,162.36/x
  3. Step 3: Cross multiply
    121,069x = 181,575.42 × 46,162.36
  4. Step 4: Simplify right side
    121,069x = 8,381,949,905.19
  5. Step 5: Solve for x
    x = 8,381,949,905.19/121,069
  6. Step 6: Final answer
    x = 69,232.83

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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.