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Finding the Fourth Proportional to 85,332.25, 117,754.20 and 47,599.21

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Solution

The fourth proportional to 85,332.25, 117,754.20 and 47,599.21 is: 65,684.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,332.25 : 117,754.20 = 47,599.21 : x
  2. Step 2: Convert to fraction form
    85,332.25/117,754.20 = 47,599.21/x
  3. Step 3: Cross multiply
    85,332.25x = 117,754.20 × 47,599.21
  4. Step 4: Simplify right side
    85,332.25x = 5,605,006,894.18
  5. Step 5: Solve for x
    x = 5,605,006,894.18/85,332.25
  6. Step 6: Final answer
    x = 65,684.51

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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.