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Finding the Fourth Proportional to 159,765.12, 220,436.48 and 97,659.94

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Solution

The fourth proportional to 159,765.12, 220,436.48 and 97,659.94 is: 134,746.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,765.12 : 220,436.48 = 97,659.94 : x
  2. Step 2: Convert to fraction form
    159,765.12/220,436.48 = 97,659.94/x
  3. Step 3: Cross multiply
    159,765.12x = 220,436.48 × 97,659.94
  4. Step 4: Simplify right side
    159,765.12x = 21,527,813,410.61
  5. Step 5: Solve for x
    x = 21,527,813,410.61/159,765.12
  6. Step 6: Final answer
    x = 134,746.64

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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.