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Finding the Fourth Proportional to 352,331.82, 528,478.86 and 124,611.66

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Solution

The fourth proportional to 352,331.82, 528,478.86 and 124,611.66 is: 186,910.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,331.82 : 528,478.86 = 124,611.66 : x
  2. Step 2: Convert to fraction form
    352,331.82/528,478.86 = 124,611.66/x
  3. Step 3: Cross multiply
    352,331.82x = 528,478.86 × 124,611.66
  4. Step 4: Simplify right side
    352,331.82x = 65,854,628,019.51
  5. Step 5: Solve for x
    x = 65,854,628,019.51/352,331.82
  6. Step 6: Final answer
    x = 186,910.82

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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.