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Finding the Fourth Proportional to 70,949.11, 106,374.45 and 37,692.53

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Solution

The fourth proportional to 70,949.11, 106,374.45 and 37,692.53 is: 56,512.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,949.11 : 106,374.45 = 37,692.53 : x
  2. Step 2: Convert to fraction form
    70,949.11/106,374.45 = 37,692.53/x
  3. Step 3: Cross multiply
    70,949.11x = 106,374.45 × 37,692.53
  4. Step 4: Simplify right side
    70,949.11x = 4,009,521,427.52
  5. Step 5: Solve for x
    x = 4,009,521,427.52/70,949.11
  6. Step 6: Final answer
    x = 56,512.64

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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.