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Finding the Fourth Proportional to 110,904.51, 166,199.51 and 85,827.83

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Solution

The fourth proportional to 110,904.51, 166,199.51 and 85,827.83 is: 128,620.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,904.51 : 166,199.51 = 85,827.83 : x
  2. Step 2: Convert to fraction form
    110,904.51/166,199.51 = 85,827.83/x
  3. Step 3: Cross multiply
    110,904.51x = 166,199.51 × 85,827.83
  4. Step 4: Simplify right side
    110,904.51x = 14,264,542,030.23
  5. Step 5: Solve for x
    x = 14,264,542,030.23/110,904.51
  6. Step 6: Final answer
    x = 128,620.04

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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.