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Finding the Fourth Proportional to 74,803.68, 112,098.60 and 54,926.28

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Solution

The fourth proportional to 74,803.68, 112,098.60 and 54,926.28 is: 82,310.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,803.68 : 112,098.60 = 54,926.28 : x
  2. Step 2: Convert to fraction form
    74,803.68/112,098.60 = 54,926.28/x
  3. Step 3: Cross multiply
    74,803.68x = 112,098.60 × 54,926.28
  4. Step 4: Simplify right side
    74,803.68x = 6,157,159,091.21
  5. Step 5: Solve for x
    x = 6,157,159,091.21/74,803.68
  6. Step 6: Final answer
    x = 82,310.91

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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.