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Finding the Fourth Proportional to 70,194.60, 105,342.68 and 27,506.40

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Solution

The fourth proportional to 70,194.60, 105,342.68 and 27,506.40 is: 41,279.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,194.60 : 105,342.68 = 27,506.40 : x
  2. Step 2: Convert to fraction form
    70,194.60/105,342.68 = 27,506.40/x
  3. Step 3: Cross multiply
    70,194.60x = 105,342.68 × 27,506.40
  4. Step 4: Simplify right side
    70,194.60x = 2,897,597,893.15
  5. Step 5: Solve for x
    x = 2,897,597,893.15/70,194.60
  6. Step 6: Final answer
    x = 41,279.50

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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.