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Finding the Fourth Proportional to 110,671.66, 152,893.44 and 72,521.86

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Solution

The fourth proportional to 110,671.66, 152,893.44 and 72,521.86 is: 100,189.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,671.66 : 152,893.44 = 72,521.86 : x
  2. Step 2: Convert to fraction form
    110,671.66/152,893.44 = 72,521.86/x
  3. Step 3: Cross multiply
    110,671.66x = 152,893.44 × 72,521.86
  4. Step 4: Simplify right side
    110,671.66x = 11,088,116,650.60
  5. Step 5: Solve for x
    x = 11,088,116,650.60/110,671.66
  6. Step 6: Final answer
    x = 100,189.30

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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.