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Finding the Fourth Proportional to 92,622.70, 138,786.39 and 59,315.35

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Solution

The fourth proportional to 92,622.70, 138,786.39 and 59,315.35 is: 88,878.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,622.70 : 138,786.39 = 59,315.35 : x
  2. Step 2: Convert to fraction form
    92,622.70/138,786.39 = 59,315.35/x
  3. Step 3: Cross multiply
    92,622.70x = 138,786.39 × 59,315.35
  4. Step 4: Simplify right side
    92,622.70x = 8,232,163,298.09
  5. Step 5: Solve for x
    x = 8,232,163,298.09/92,622.70
  6. Step 6: Final answer
    x = 88,878.46

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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.