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Finding the Fourth Proportional to 412,701.01, 619,052.42 and 113,185.89

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Solution

The fourth proportional to 412,701.01, 619,052.42 and 113,185.89 is: 169,779.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,701.01 : 619,052.42 = 113,185.89 : x
  2. Step 2: Convert to fraction form
    412,701.01/619,052.42 = 113,185.89/x
  3. Step 3: Cross multiply
    412,701.01x = 619,052.42 × 113,185.89
  4. Step 4: Simplify right side
    412,701.01x = 70,067,999,397.32
  5. Step 5: Solve for x
    x = 70,067,999,397.32/412,701.01
  6. Step 6: Final answer
    x = 169,779.08

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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.