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Finding the Fourth Proportional to 169,886.01, 255,025.87 and 91,154.01

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Solution

The fourth proportional to 169,886.01, 255,025.87 and 91,154.01 is: 136,836.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,886.01 : 255,025.87 = 91,154.01 : x
  2. Step 2: Convert to fraction form
    169,886.01/255,025.87 = 91,154.01/x
  3. Step 3: Cross multiply
    169,886.01x = 255,025.87 × 91,154.01
  4. Step 4: Simplify right side
    169,886.01x = 23,246,630,704.24
  5. Step 5: Solve for x
    x = 23,246,630,704.24/169,886.01
  6. Step 6: Final answer
    x = 136,836.64

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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.