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Finding the Fourth Proportional to 86,062.97, 118,776.15 and 52,090.15

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Solution

The fourth proportional to 86,062.97, 118,776.15 and 52,090.15 is: 71,890.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,062.97 : 118,776.15 = 52,090.15 : x
  2. Step 2: Convert to fraction form
    86,062.97/118,776.15 = 52,090.15/x
  3. Step 3: Cross multiply
    86,062.97x = 118,776.15 × 52,090.15
  4. Step 4: Simplify right side
    86,062.97x = 6,187,066,876.04
  5. Step 5: Solve for x
    x = 6,187,066,876.04/86,062.97
  6. Step 6: Final answer
    x = 71,890.00

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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.