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Finding the Fourth Proportional to 161,717.70, 242,620.29 and 91,646.22

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Solution

The fourth proportional to 161,717.70, 242,620.29 and 91,646.22 is: 137,494.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,717.70 : 242,620.29 = 91,646.22 : x
  2. Step 2: Convert to fraction form
    161,717.70/242,620.29 = 91,646.22/x
  3. Step 3: Cross multiply
    161,717.70x = 242,620.29 × 91,646.22
  4. Step 4: Simplify right side
    161,717.70x = 22,235,232,473.80
  5. Step 5: Solve for x
    x = 22,235,232,473.80/161,717.70
  6. Step 6: Final answer
    x = 137,494.12

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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.