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Finding the Fourth Proportional to 68,490.54, 94,577.15 and 43,041.15

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Solution

The fourth proportional to 68,490.54, 94,577.15 and 43,041.15 is: 59,434.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,490.54 : 94,577.15 = 43,041.15 : x
  2. Step 2: Convert to fraction form
    68,490.54/94,577.15 = 43,041.15/x
  3. Step 3: Cross multiply
    68,490.54x = 94,577.15 × 43,041.15
  4. Step 4: Simplify right side
    68,490.54x = 4,070,709,407.33
  5. Step 5: Solve for x
    x = 4,070,709,407.33/68,490.54
  6. Step 6: Final answer
    x = 59,434.62

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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.