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Finding the Fourth Proportional to 74,325.87, 111,484.49 and 54,355.59

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Solution

The fourth proportional to 74,325.87, 111,484.49 and 54,355.59 is: 81,530.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,325.87 : 111,484.49 = 54,355.59 : x
  2. Step 2: Convert to fraction form
    74,325.87/111,484.49 = 54,355.59/x
  3. Step 3: Cross multiply
    74,325.87x = 111,484.49 × 54,355.59
  4. Step 4: Simplify right side
    74,325.87x = 6,059,804,958.02
  5. Step 5: Solve for x
    x = 6,059,804,958.02/74,325.87
  6. Step 6: Final answer
    x = 81,530.23

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1.5x scale

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.