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Finding the Fourth Proportional to 98,808.40, 148,183.80 and 39,624.40

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Solution

The fourth proportional to 98,808.40, 148,183.80 and 39,624.40 is: 59,425.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,808.40 : 148,183.80 = 39,624.40 : x
  2. Step 2: Convert to fraction form
    98,808.40/148,183.80 = 39,624.40/x
  3. Step 3: Cross multiply
    98,808.40x = 148,183.80 × 39,624.40
  4. Step 4: Simplify right side
    98,808.40x = 5,871,694,164.72
  5. Step 5: Solve for x
    x = 5,871,694,164.72/98,808.40
  6. Step 6: Final answer
    x = 59,425.05

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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.