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Finding the Fourth Proportional to 70,109.54, 105,164.31 and 37,269.86

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Solution

The fourth proportional to 70,109.54, 105,164.31 and 37,269.86 is: 55,904.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,109.54 : 105,164.31 = 37,269.86 : x
  2. Step 2: Convert to fraction form
    70,109.54/105,164.31 = 37,269.86/x
  3. Step 3: Cross multiply
    70,109.54x = 105,164.31 × 37,269.86
  4. Step 4: Simplify right side
    70,109.54x = 3,919,459,110.70
  5. Step 5: Solve for x
    x = 3,919,459,110.70/70,109.54
  6. Step 6: Final answer
    x = 55,904.79

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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.