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Finding the Fourth Proportional to 113,728.54, 170,364.34 and 56,630.43

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Solution

The fourth proportional to 113,728.54, 170,364.34 and 56,630.43 is: 84,831.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,728.54 : 170,364.34 = 56,630.43 : x
  2. Step 2: Convert to fraction form
    113,728.54/170,364.34 = 56,630.43/x
  3. Step 3: Cross multiply
    113,728.54x = 170,364.34 × 56,630.43
  4. Step 4: Simplify right side
    113,728.54x = 9,647,805,830.87
  5. Step 5: Solve for x
    x = 9,647,805,830.87/113,728.54
  6. Step 6: Final answer
    x = 84,831.88

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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.