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Finding the Fourth Proportional to 242,911.56, 364,378.23 and 74,419.56

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Solution

The fourth proportional to 242,911.56, 364,378.23 and 74,419.56 is: 111,632.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,911.56 : 364,378.23 = 74,419.56 : x
  2. Step 2: Convert to fraction form
    242,911.56/364,378.23 = 74,419.56/x
  3. Step 3: Cross multiply
    242,911.56x = 364,378.23 × 74,419.56
  4. Step 4: Simplify right side
    242,911.56x = 27,116,867,550.18
  5. Step 5: Solve for x
    x = 27,116,867,550.18/242,911.56
  6. Step 6: Final answer
    x = 111,632.68

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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.