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Finding the Fourth Proportional to 157,249.71, 217,021.95 and 96,808.32

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Solution

The fourth proportional to 157,249.71, 217,021.95 and 96,808.32 is: 133,606.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,249.71 : 217,021.95 = 96,808.32 : x
  2. Step 2: Convert to fraction form
    157,249.71/217,021.95 = 96,808.32/x
  3. Step 3: Cross multiply
    157,249.71x = 217,021.95 × 96,808.32
  4. Step 4: Simplify right side
    157,249.71x = 21,009,530,382.62
  5. Step 5: Solve for x
    x = 21,009,530,382.62/157,249.71
  6. Step 6: Final answer
    x = 133,606.16

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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.