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Finding the Fourth Proportional to 92,416.70, 138,528.57 and 67,054.94

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Solution

The fourth proportional to 92,416.70, 138,528.57 and 67,054.94 is: 100,512.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,416.70 : 138,528.57 = 67,054.94 : x
  2. Step 2: Convert to fraction form
    92,416.70/138,528.57 = 67,054.94/x
  3. Step 3: Cross multiply
    92,416.70x = 138,528.57 × 67,054.94
  4. Step 4: Simplify right side
    92,416.70x = 9,289,024,949.64
  5. Step 5: Solve for x
    x = 9,289,024,949.64/92,416.70
  6. Step 6: Final answer
    x = 100,512.41

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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.