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Finding the Fourth Proportional to 127,381.59, 191,072.84 and 38,635.86

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Solution

The fourth proportional to 127,381.59, 191,072.84 and 38,635.86 is: 57,953.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,381.59 : 191,072.84 = 38,635.86 : x
  2. Step 2: Convert to fraction form
    127,381.59/191,072.84 = 38,635.86/x
  3. Step 3: Cross multiply
    127,381.59x = 191,072.84 × 38,635.86
  4. Step 4: Simplify right side
    127,381.59x = 7,382,263,496.04
  5. Step 5: Solve for x
    x = 7,382,263,496.04/127,381.59
  6. Step 6: Final answer
    x = 57,953.93

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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.