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Finding the Fourth Proportional to 70,632.48, 105,787.44 and 33,722.40

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Solution

The fourth proportional to 70,632.48, 105,787.44 and 33,722.40 is: 50,506.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,632.48 : 105,787.44 = 33,722.40 : x
  2. Step 2: Convert to fraction form
    70,632.48/105,787.44 = 33,722.40/x
  3. Step 3: Cross multiply
    70,632.48x = 105,787.44 × 33,722.40
  4. Step 4: Simplify right side
    70,632.48x = 3,567,406,366.66
  5. Step 5: Solve for x
    x = 3,567,406,366.66/70,632.48
  6. Step 6: Final answer
    x = 50,506.60

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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.