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Finding the Fourth Proportional to 375,494.72, 563,232.36 and 126,176.72

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Solution

The fourth proportional to 375,494.72, 563,232.36 and 126,176.72 is: 189,261.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,494.72 : 563,232.36 = 126,176.72 : x
  2. Step 2: Convert to fraction form
    375,494.72/563,232.36 = 126,176.72/x
  3. Step 3: Cross multiply
    375,494.72x = 563,232.36 × 126,176.72
  4. Step 4: Simplify right side
    375,494.72x = 71,066,811,782.66
  5. Step 5: Solve for x
    x = 71,066,811,782.66/375,494.72
  6. Step 6: Final answer
    x = 189,261.81

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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.