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Finding the Fourth Proportional to 86,512.71, 119,367.16 and 52,520.34

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Solution

The fourth proportional to 86,512.71, 119,367.16 and 52,520.34 is: 72,465.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,512.71 : 119,367.16 = 52,520.34 : x
  2. Step 2: Convert to fraction form
    86,512.71/119,367.16 = 52,520.34/x
  3. Step 3: Cross multiply
    86,512.71x = 119,367.16 × 52,520.34
  4. Step 4: Simplify right side
    86,512.71x = 6,269,203,828.03
  5. Step 5: Solve for x
    x = 6,269,203,828.03/86,512.71
  6. Step 6: Final answer
    x = 72,465.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.