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Finding the Fourth Proportional to 67,296.42, 100,815.28 and 37,624.28

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Solution

The fourth proportional to 67,296.42, 100,815.28 and 37,624.28 is: 56,364.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,296.42 : 100,815.28 = 37,624.28 : x
  2. Step 2: Convert to fraction form
    67,296.42/100,815.28 = 37,624.28/x
  3. Step 3: Cross multiply
    67,296.42x = 100,815.28 × 37,624.28
  4. Step 4: Simplify right side
    67,296.42x = 3,793,102,323.00
  5. Step 5: Solve for x
    x = 3,793,102,323.00/67,296.42
  6. Step 6: Final answer
    x = 56,364.10

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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.