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Finding the Fourth Proportional to 127,934.60, 191,729.10 and 113,073.80

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Solution

The fourth proportional to 127,934.60, 191,729.10 and 113,073.80 is: 169,457.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,934.60 : 191,729.10 = 113,073.80 : x
  2. Step 2: Convert to fraction form
    127,934.60/191,729.10 = 113,073.80/x
  3. Step 3: Cross multiply
    127,934.60x = 191,729.10 × 113,073.80
  4. Step 4: Simplify right side
    127,934.60x = 21,679,537,907.58
  5. Step 5: Solve for x
    x = 21,679,537,907.58/127,934.60
  6. Step 6: Final answer
    x = 169,457.97

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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.