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Finding the Fourth Proportional to 159,887.68, 220,639.21 and 88,266.16

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Solution

The fourth proportional to 159,887.68, 220,639.21 and 88,266.16 is: 121,804.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,887.68 : 220,639.21 = 88,266.16 : x
  2. Step 2: Convert to fraction form
    159,887.68/220,639.21 = 88,266.16/x
  3. Step 3: Cross multiply
    159,887.68x = 220,639.21 × 88,266.16
  4. Step 4: Simplify right side
    159,887.68x = 19,474,974,267.61
  5. Step 5: Solve for x
    x = 19,474,974,267.61/159,887.68
  6. Step 6: Final answer
    x = 121,804.10

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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.