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Finding the Fourth Proportional to 159,716.42, 220,407.74 and 88,096.28

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Solution

The fourth proportional to 159,716.42, 220,407.74 and 88,096.28 is: 121,572.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,716.42 : 220,407.74 = 88,096.28 : x
  2. Step 2: Convert to fraction form
    159,716.42/220,407.74 = 88,096.28/x
  3. Step 3: Cross multiply
    159,716.42x = 220,407.74 × 88,096.28
  4. Step 4: Simplify right side
    159,716.42x = 19,417,101,977.21
  5. Step 5: Solve for x
    x = 19,417,101,977.21/159,716.42
  6. Step 6: Final answer
    x = 121,572.36

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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.