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Finding the Fourth Proportional to 68,906.43, 103,271.54 and 59,985.32

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Solution

The fourth proportional to 68,906.43, 103,271.54 and 59,985.32 is: 89,901.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,906.43 : 103,271.54 = 59,985.32 : x
  2. Step 2: Convert to fraction form
    68,906.43/103,271.54 = 59,985.32/x
  3. Step 3: Cross multiply
    68,906.43x = 103,271.54 × 59,985.32
  4. Step 4: Simplify right side
    68,906.43x = 6,194,775,557.51
  5. Step 5: Solve for x
    x = 6,194,775,557.51/68,906.43
  6. Step 6: Final answer
    x = 89,901.27

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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.