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Finding the Fourth Proportional to 192,928.32, 266,333.49 and 128,504.76

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Solution

The fourth proportional to 192,928.32, 266,333.49 and 128,504.76 is: 177,398.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,928.32 : 266,333.49 = 128,504.76 : x
  2. Step 2: Convert to fraction form
    192,928.32/266,333.49 = 128,504.76/x
  3. Step 3: Cross multiply
    192,928.32x = 266,333.49 × 128,504.76
  4. Step 4: Simplify right side
    192,928.32x = 34,225,121,212.41
  5. Step 5: Solve for x
    x = 34,225,121,212.41/192,928.32
  6. Step 6: Final answer
    x = 177,398.12

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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.