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Finding the Fourth Proportional to 70,923.96, 106,253.10 and 63,621

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Solution

The fourth proportional to 70,923.96, 106,253.10 and 63,621 is: 95,312.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,923.96 : 106,253.10 = 63,621 : x
  2. Step 2: Convert to fraction form
    70,923.96/106,253.10 = 63,621/x
  3. Step 3: Cross multiply
    70,923.96x = 106,253.10 × 63,621
  4. Step 4: Simplify right side
    70,923.96x = 6,759,928,475.10
  5. Step 5: Solve for x
    x = 6,759,928,475.10/70,923.96
  6. Step 6: Final answer
    x = 95,312.34

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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.