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Finding the Fourth Proportional to 160,606.78, 221,629.89 and 88,009.24

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Solution

The fourth proportional to 160,606.78, 221,629.89 and 88,009.24 is: 121,448.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,606.78 : 221,629.89 = 88,009.24 : x
  2. Step 2: Convert to fraction form
    160,606.78/221,629.89 = 88,009.24/x
  3. Step 3: Cross multiply
    160,606.78x = 221,629.89 × 88,009.24
  4. Step 4: Simplify right side
    160,606.78x = 19,505,478,180.18
  5. Step 5: Solve for x
    x = 19,505,478,180.18/160,606.78
  6. Step 6: Final answer
    x = 121,448.66

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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.