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Finding the Fourth Proportional to 68,468.80, 94,436.40 and 43,294

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Solution

The fourth proportional to 68,468.80, 94,436.40 and 43,294 is: 59,713.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,468.80 : 94,436.40 = 43,294 : x
  2. Step 2: Convert to fraction form
    68,468.80/94,436.40 = 43,294/x
  3. Step 3: Cross multiply
    68,468.80x = 94,436.40 × 43,294
  4. Step 4: Simplify right side
    68,468.80x = 4,088,529,501.60
  5. Step 5: Solve for x
    x = 4,088,529,501.60/68,468.80
  6. Step 6: Final answer
    x = 59,713.76

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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.