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Finding the Fourth Proportional to 87,076, 130,504.68 and 47,093.39

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Solution

The fourth proportional to 87,076, 130,504.68 and 47,093.39 is: 70,580.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,076 : 130,504.68 = 47,093.39 : x
  2. Step 2: Convert to fraction form
    87,076/130,504.68 = 47,093.39/x
  3. Step 3: Cross multiply
    87,076x = 130,504.68 × 47,093.39
  4. Step 4: Simplify right side
    87,076x = 6,145,907,792.07
  5. Step 5: Solve for x
    x = 6,145,907,792.07/87,076
  6. Step 6: Final answer
    x = 70,580.96

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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.