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Finding the Fourth Proportional to 65,904.40, 98,856.60 and 54,823.60

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Solution

The fourth proportional to 65,904.40, 98,856.60 and 54,823.60 is: 82,235.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,904.40 : 98,856.60 = 54,823.60 : x
  2. Step 2: Convert to fraction form
    65,904.40/98,856.60 = 54,823.60/x
  3. Step 3: Cross multiply
    65,904.40x = 98,856.60 × 54,823.60
  4. Step 4: Simplify right side
    65,904.40x = 5,419,674,695.76
  5. Step 5: Solve for x
    x = 5,419,674,695.76/65,904.40
  6. Step 6: Final answer
    x = 82,235.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.