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Finding the Fourth Proportional to 223,480.48, 308,403.06 and 122,878.48

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Solution

The fourth proportional to 223,480.48, 308,403.06 and 122,878.48 is: 169,572.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,480.48 : 308,403.06 = 122,878.48 : x
  2. Step 2: Convert to fraction form
    223,480.48/308,403.06 = 122,878.48/x
  3. Step 3: Cross multiply
    223,480.48x = 308,403.06 × 122,878.48
  4. Step 4: Simplify right side
    223,480.48x = 37,896,099,240.15
  5. Step 5: Solve for x
    x = 37,896,099,240.15/223,480.48
  6. Step 6: Final answer
    x = 169,572.30

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.