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Finding the Fourth Proportional to 159,913.01, 220,683.40 and 88,297.56

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Solution

The fourth proportional to 159,913.01, 220,683.40 and 88,297.56 is: 121,852.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,913.01 : 220,683.40 = 88,297.56 : x
  2. Step 2: Convert to fraction form
    159,913.01/220,683.40 = 88,297.56/x
  3. Step 3: Cross multiply
    159,913.01x = 220,683.40 × 88,297.56
  4. Step 4: Simplify right side
    159,913.01x = 19,485,805,531.76
  5. Step 5: Solve for x
    x = 19,485,805,531.76/159,913.01
  6. Step 6: Final answer
    x = 121,852.53

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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.