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Finding the Fourth Proportional to 242,917.32, 335,226.41 and 135,484.59

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Solution

The fourth proportional to 242,917.32, 335,226.41 and 135,484.59 is: 186,969.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,917.32 : 335,226.41 = 135,484.59 : x
  2. Step 2: Convert to fraction form
    242,917.32/335,226.41 = 135,484.59/x
  3. Step 3: Cross multiply
    242,917.32x = 335,226.41 × 135,484.59
  4. Step 4: Simplify right side
    242,917.32x = 45,418,012,716.02
  5. Step 5: Solve for x
    x = 45,418,012,716.02/242,917.32
  6. Step 6: Final answer
    x = 186,969.02

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1.5x scale

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.