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Finding the Fourth Proportional to 87,056, 130,620.95 and 47,566.98

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Solution

The fourth proportional to 87,056, 130,620.95 and 47,566.98 is: 71,370.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,056 : 130,620.95 = 47,566.98 : x
  2. Step 2: Convert to fraction form
    87,056/130,620.95 = 47,566.98/x
  3. Step 3: Cross multiply
    87,056x = 130,620.95 × 47,566.98
  4. Step 4: Simplify right side
    87,056x = 6,213,244,116.23
  5. Step 5: Solve for x
    x = 6,213,244,116.23/87,056
  6. Step 6: Final answer
    x = 71,370.66

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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.