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Finding the Fourth Proportional to 79,856.70, 119,785.05 and 37,722.93

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Solution

The fourth proportional to 79,856.70, 119,785.05 and 37,722.93 is: 56,584.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,856.70 : 119,785.05 = 37,722.93 : x
  2. Step 2: Convert to fraction form
    79,856.70/119,785.05 = 37,722.93/x
  3. Step 3: Cross multiply
    79,856.70x = 119,785.05 × 37,722.93
  4. Step 4: Simplify right side
    79,856.70x = 4,518,643,056.20
  5. Step 5: Solve for x
    x = 4,518,643,056.20/79,856.70
  6. Step 6: Final answer
    x = 56,584.40

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Similar ratio
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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.