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Finding the Fourth Proportional to 113,384.25, 170,078.01 and 39,512.25

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Solution

The fourth proportional to 113,384.25, 170,078.01 and 39,512.25 is: 59,268.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,384.25 : 170,078.01 = 39,512.25 : x
  2. Step 2: Convert to fraction form
    113,384.25/170,078.01 = 39,512.25/x
  3. Step 3: Cross multiply
    113,384.25x = 170,078.01 × 39,512.25
  4. Step 4: Simplify right side
    113,384.25x = 6,720,164,850.62
  5. Step 5: Solve for x
    x = 6,720,164,850.62/113,384.25
  6. Step 6: Final answer
    x = 59,268.94

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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.