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Finding the Fourth Proportional to 74,719.64, 112,079.11 and 32,018.82

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Solution

The fourth proportional to 74,719.64, 112,079.11 and 32,018.82 is: 48,028.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,719.64 : 112,079.11 = 32,018.82 : x
  2. Step 2: Convert to fraction form
    74,719.64/112,079.11 = 32,018.82/x
  3. Step 3: Cross multiply
    74,719.64x = 112,079.11 × 32,018.82
  4. Step 4: Simplify right side
    74,719.64x = 3,588,640,848.85
  5. Step 5: Solve for x
    x = 3,588,640,848.85/74,719.64
  6. Step 6: Final answer
    x = 48,028.08

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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.