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Finding the Fourth Proportional to 70,988.65, 106,392.53 and 37,724.65

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Solution

The fourth proportional to 70,988.65, 106,392.53 and 37,724.65 is: 56,538.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,988.65 : 106,392.53 = 37,724.65 : x
  2. Step 2: Convert to fraction form
    70,988.65/106,392.53 = 37,724.65/x
  3. Step 3: Cross multiply
    70,988.65x = 106,392.53 × 37,724.65
  4. Step 4: Simplify right side
    70,988.65x = 4,013,620,768.24
  5. Step 5: Solve for x
    x = 4,013,620,768.24/70,988.65
  6. Step 6: Final answer
    x = 56,538.91

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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.