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Finding the Fourth Proportional to 111,551.40, 167,327.10 and 102,565.80

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Solution

The fourth proportional to 111,551.40, 167,327.10 and 102,565.80 is: 153,848.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,551.40 : 167,327.10 = 102,565.80 : x
  2. Step 2: Convert to fraction form
    111,551.40/167,327.10 = 102,565.80/x
  3. Step 3: Cross multiply
    111,551.40x = 167,327.10 × 102,565.80
  4. Step 4: Simplify right side
    111,551.40x = 17,162,037,873.18
  5. Step 5: Solve for x
    x = 17,162,037,873.18/111,551.40
  6. Step 6: Final answer
    x = 153,848.70

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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.