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Finding the Fourth Proportional to 70,020.96, 105,052.20 and 32,603.08

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Solution

The fourth proportional to 70,020.96, 105,052.20 and 32,603.08 is: 48,914.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,020.96 : 105,052.20 = 32,603.08 : x
  2. Step 2: Convert to fraction form
    70,020.96/105,052.20 = 32,603.08/x
  3. Step 3: Cross multiply
    70,020.96x = 105,052.20 × 32,603.08
  4. Step 4: Simplify right side
    70,020.96x = 3,425,025,280.78
  5. Step 5: Solve for x
    x = 3,425,025,280.78/70,020.96
  6. Step 6: Final answer
    x = 48,914.29

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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.