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Finding the Fourth Proportional to 92,417.45, 138,529.69 and 67,055.69

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Solution

The fourth proportional to 92,417.45, 138,529.69 and 67,055.69 is: 100,513.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,417.45 : 138,529.69 = 67,055.69 : x
  2. Step 2: Convert to fraction form
    92,417.45/138,529.69 = 67,055.69/x
  3. Step 3: Cross multiply
    92,417.45x = 138,529.69 × 67,055.69
  4. Step 4: Simplify right side
    92,417.45x = 9,289,203,948.44
  5. Step 5: Solve for x
    x = 9,289,203,948.44/92,417.45
  6. Step 6: Final answer
    x = 100,513.53

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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.