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Finding the Fourth Proportional to 235,591.68, 325,124.96 and 135,009.12

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Solution

The fourth proportional to 235,591.68, 325,124.96 and 135,009.12 is: 186,317.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,591.68 : 325,124.96 = 135,009.12 : x
  2. Step 2: Convert to fraction form
    235,591.68/325,124.96 = 135,009.12/x
  3. Step 3: Cross multiply
    235,591.68x = 325,124.96 × 135,009.12
  4. Step 4: Simplify right side
    235,591.68x = 43,894,834,739.64
  5. Step 5: Solve for x
    x = 43,894,834,739.64/235,591.68
  6. Step 6: Final answer
    x = 186,317.42

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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.