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Finding the Fourth Proportional to 231,863.60, 348,025.80 and 113,668.40

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Solution

The fourth proportional to 231,863.60, 348,025.80 and 113,668.40 is: 170,615.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,863.60 : 348,025.80 = 113,668.40 : x
  2. Step 2: Convert to fraction form
    231,863.60/348,025.80 = 113,668.40/x
  3. Step 3: Cross multiply
    231,863.60x = 348,025.80 × 113,668.40
  4. Step 4: Simplify right side
    231,863.60x = 39,559,535,844.72
  5. Step 5: Solve for x
    x = 39,559,535,844.72/231,863.60
  6. Step 6: Final answer
    x = 170,615.55

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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.