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Finding the Fourth Proportional to 68,666.27, 94,710.47 and 63,019.22

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Solution

The fourth proportional to 68,666.27, 94,710.47 and 63,019.22 is: 86,921.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,666.27 : 94,710.47 = 63,019.22 : x
  2. Step 2: Convert to fraction form
    68,666.27/94,710.47 = 63,019.22/x
  3. Step 3: Cross multiply
    68,666.27x = 94,710.47 × 63,019.22
  4. Step 4: Simplify right side
    68,666.27x = 5,968,579,156.58
  5. Step 5: Solve for x
    x = 5,968,579,156.58/68,666.27
  6. Step 6: Final answer
    x = 86,921.56

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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.