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Finding the Fourth Proportional to 235,202.66, 352,783.17 and 85,444.23

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Solution

The fourth proportional to 235,202.66, 352,783.17 and 85,444.23 is: 128,158.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,202.66 : 352,783.17 = 85,444.23 : x
  2. Step 2: Convert to fraction form
    235,202.66/352,783.17 = 85,444.23/x
  3. Step 3: Cross multiply
    235,202.66x = 352,783.17 × 85,444.23
  4. Step 4: Simplify right side
    235,202.66x = 30,143,286,317.61
  5. Step 5: Solve for x
    x = 30,143,286,317.61/235,202.66
  6. Step 6: Final answer
    x = 128,158.78

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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.