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Finding the Fourth Proportional to 64,047.95, 88,190.51 and 58,040.54

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Solution

The fourth proportional to 64,047.95, 88,190.51 and 58,040.54 is: 79,918.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,047.95 : 88,190.51 = 58,040.54 : x
  2. Step 2: Convert to fraction form
    64,047.95/88,190.51 = 58,040.54/x
  3. Step 3: Cross multiply
    64,047.95x = 88,190.51 × 58,040.54
  4. Step 4: Simplify right side
    64,047.95x = 5,118,624,092.12
  5. Step 5: Solve for x
    x = 5,118,624,092.12/64,047.95
  6. Step 6: Final answer
    x = 79,918.63

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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.