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Finding the Fourth Proportional to 159,840.62, 220,564.35 and 88,216.01

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Solution

The fourth proportional to 159,840.62, 220,564.35 and 88,216.01 is: 121,729.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,840.62 : 220,564.35 = 88,216.01 : x
  2. Step 2: Convert to fraction form
    159,840.62/220,564.35 = 88,216.01/x
  3. Step 3: Cross multiply
    159,840.62x = 220,564.35 × 88,216.01
  4. Step 4: Simplify right side
    159,840.62x = 19,457,307,870.21
  5. Step 5: Solve for x
    x = 19,457,307,870.21/159,840.62
  6. Step 6: Final answer
    x = 121,729.43

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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.