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Finding the Fourth Proportional to 68,718.48, 102,989.63 and 59,796.73

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Solution

The fourth proportional to 68,718.48, 102,989.63 and 59,796.73 is: 89,618.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,718.48 : 102,989.63 = 59,796.73 : x
  2. Step 2: Convert to fraction form
    68,718.48/102,989.63 = 59,796.73/x
  3. Step 3: Cross multiply
    68,718.48x = 102,989.63 × 59,796.73
  4. Step 4: Simplify right side
    68,718.48x = 6,158,443,039.78
  5. Step 5: Solve for x
    x = 6,158,443,039.78/68,718.48
  6. Step 6: Final answer
    x = 89,618.45

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1.5x scale

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.