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Finding the Fourth Proportional to 59,930.07, 89,755.07 and 47,365.80

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Solution

The fourth proportional to 59,930.07, 89,755.07 and 47,365.80 is: 70,938.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,930.07 : 89,755.07 = 47,365.80 : x
  2. Step 2: Convert to fraction form
    59,930.07/89,755.07 = 47,365.80/x
  3. Step 3: Cross multiply
    59,930.07x = 89,755.07 × 47,365.80
  4. Step 4: Simplify right side
    59,930.07x = 4,251,320,457.78
  5. Step 5: Solve for x
    x = 4,251,320,457.78/59,930.07
  6. Step 6: Final answer
    x = 70,938.02

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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.