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Finding the Fourth Proportional to 372,051.72, 558,079.74 and 91,567.08

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Solution

The fourth proportional to 372,051.72, 558,079.74 and 91,567.08 is: 137,351.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,051.72 : 558,079.74 = 91,567.08 : x
  2. Step 2: Convert to fraction form
    372,051.72/558,079.74 = 91,567.08/x
  3. Step 3: Cross multiply
    372,051.72x = 558,079.74 × 91,567.08
  4. Step 4: Simplify right side
    372,051.72x = 51,101,732,198.96
  5. Step 5: Solve for x
    x = 51,101,732,198.96/372,051.72
  6. Step 6: Final answer
    x = 137,351.15

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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.