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Finding the Fourth Proportional to 68,704.61, 94,858.59 and 42,902.46

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Solution

The fourth proportional to 68,704.61, 94,858.59 and 42,902.46 is: 59,234.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,704.61 : 94,858.59 = 42,902.46 : x
  2. Step 2: Convert to fraction form
    68,704.61/94,858.59 = 42,902.46/x
  3. Step 3: Cross multiply
    68,704.61x = 94,858.59 × 42,902.46
  4. Step 4: Simplify right side
    68,704.61x = 4,069,667,024.02
  5. Step 5: Solve for x
    x = 4,069,667,024.02/68,704.61
  6. Step 6: Final answer
    x = 59,234.27

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1.5x scale

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.