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Finding the Fourth Proportional to 194,347.88, 291,255.72 and 99,379.42

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Solution

The fourth proportional to 194,347.88, 291,255.72 and 99,379.42 is: 148,933.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,347.88 : 291,255.72 = 99,379.42 : x
  2. Step 2: Convert to fraction form
    194,347.88/291,255.72 = 99,379.42/x
  3. Step 3: Cross multiply
    194,347.88x = 291,255.72 × 99,379.42
  4. Step 4: Simplify right side
    194,347.88x = 28,944,824,525.28
  5. Step 5: Solve for x
    x = 28,944,824,525.28/194,347.88
  6. Step 6: Final answer
    x = 148,933.06

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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.