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Finding the Fourth Proportional to 66,995.83, 100,346.12 and 37,340.11

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Solution

The fourth proportional to 66,995.83, 100,346.12 and 37,340.11 is: 55,927.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,995.83 : 100,346.12 = 37,340.11 : x
  2. Step 2: Convert to fraction form
    66,995.83/100,346.12 = 37,340.11/x
  3. Step 3: Cross multiply
    66,995.83x = 100,346.12 × 37,340.11
  4. Step 4: Simplify right side
    66,995.83x = 3,746,935,158.87
  5. Step 5: Solve for x
    x = 3,746,935,158.87/66,995.83
  6. Step 6: Final answer
    x = 55,927.89

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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.