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Finding the Fourth Proportional to 87,364.98, 120,485.88 and 59,108.94

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Solution

The fourth proportional to 87,364.98, 120,485.88 and 59,108.94 is: 81,517.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,364.98 : 120,485.88 = 59,108.94 : x
  2. Step 2: Convert to fraction form
    87,364.98/120,485.88 = 59,108.94/x
  3. Step 3: Cross multiply
    87,364.98x = 120,485.88 × 59,108.94
  4. Step 4: Simplify right side
    87,364.98x = 7,121,792,651.77
  5. Step 5: Solve for x
    x = 7,121,792,651.77/87,364.98
  6. Step 6: Final answer
    x = 81,517.70

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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.