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Finding the Fourth Proportional to 220,779.81, 304,596.41 and 125,231.15

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Solution

The fourth proportional to 220,779.81, 304,596.41 and 125,231.15 is: 172,773.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,779.81 : 304,596.41 = 125,231.15 : x
  2. Step 2: Convert to fraction form
    220,779.81/304,596.41 = 125,231.15/x
  3. Step 3: Cross multiply
    220,779.81x = 304,596.41 × 125,231.15
  4. Step 4: Simplify right side
    220,779.81x = 38,144,956,561.03
  5. Step 5: Solve for x
    x = 38,144,956,561.03/220,779.81
  6. Step 6: Final answer
    x = 172,773.75

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.