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Finding the Fourth Proportional to 115,785.60, 173,678.40 and 32,679.60

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Solution

The fourth proportional to 115,785.60, 173,678.40 and 32,679.60 is: 49,019.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,785.60 : 173,678.40 = 32,679.60 : x
  2. Step 2: Convert to fraction form
    115,785.60/173,678.40 = 32,679.60/x
  3. Step 3: Cross multiply
    115,785.60x = 173,678.40 × 32,679.60
  4. Step 4: Simplify right side
    115,785.60x = 5,675,740,640.64
  5. Step 5: Solve for x
    x = 5,675,740,640.64/115,785.60
  6. Step 6: Final answer
    x = 49,019.40

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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.