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Finding the Fourth Proportional to 86,995.37, 130,495.76 and 41,393.08

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Solution

The fourth proportional to 86,995.37, 130,495.76 and 41,393.08 is: 62,090.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,995.37 : 130,495.76 = 41,393.08 : x
  2. Step 2: Convert to fraction form
    86,995.37/130,495.76 = 41,393.08/x
  3. Step 3: Cross multiply
    86,995.37x = 130,495.76 × 41,393.08
  4. Step 4: Simplify right side
    86,995.37x = 5,401,620,810.68
  5. Step 5: Solve for x
    x = 5,401,620,810.68/86,995.37
  6. Step 6: Final answer
    x = 62,090.90

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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.