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Finding the Fourth Proportional to 67,558.50, 93,252.60 and 42,408

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Solution

The fourth proportional to 67,558.50, 93,252.60 and 42,408 is: 58,536.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,558.50 : 93,252.60 = 42,408 : x
  2. Step 2: Convert to fraction form
    67,558.50/93,252.60 = 42,408/x
  3. Step 3: Cross multiply
    67,558.50x = 93,252.60 × 42,408
  4. Step 4: Simplify right side
    67,558.50x = 3,954,656,260.80
  5. Step 5: Solve for x
    x = 3,954,656,260.80/67,558.50
  6. Step 6: Final answer
    x = 58,536.77

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.