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Finding the Fourth Proportional to 73,429.68, 110,083.68 and 60,915.12

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Solution

The fourth proportional to 73,429.68, 110,083.68 and 60,915.12 is: 91,322.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,429.68 : 110,083.68 = 60,915.12 : x
  2. Step 2: Convert to fraction form
    73,429.68/110,083.68 = 60,915.12/x
  3. Step 3: Cross multiply
    73,429.68x = 110,083.68 × 60,915.12
  4. Step 4: Simplify right side
    73,429.68x = 6,705,760,577.24
  5. Step 5: Solve for x
    x = 6,705,760,577.24/73,429.68
  6. Step 6: Final answer
    x = 91,322.21

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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.