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Finding the Fourth Proportional to 74,201.11, 111,035.60 and 64,240.11

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Solution

The fourth proportional to 74,201.11, 111,035.60 and 64,240.11 is: 96,129.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,201.11 : 111,035.60 = 64,240.11 : x
  2. Step 2: Convert to fraction form
    74,201.11/111,035.60 = 64,240.11/x
  3. Step 3: Cross multiply
    74,201.11x = 111,035.60 × 64,240.11
  4. Step 4: Simplify right side
    74,201.11x = 7,132,939,318.52
  5. Step 5: Solve for x
    x = 7,132,939,318.52/74,201.11
  6. Step 6: Final answer
    x = 96,129.83

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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.