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Finding the Fourth Proportional to 127,968, 191,572.79 and 94,836.71

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Solution

The fourth proportional to 127,968, 191,572.79 and 94,836.71 is: 141,974.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,968 : 191,572.79 = 94,836.71 : x
  2. Step 2: Convert to fraction form
    127,968/191,572.79 = 94,836.71/x
  3. Step 3: Cross multiply
    127,968x = 191,572.79 × 94,836.71
  4. Step 4: Simplify right side
    127,968x = 18,168,131,697.07
  5. Step 5: Solve for x
    x = 18,168,131,697.07/127,968
  6. Step 6: Final answer
    x = 141,974.02

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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.