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Finding the Fourth Proportional to 169,785.72, 254,663.89 and 57,463.45

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Solution

The fourth proportional to 169,785.72, 254,663.89 and 57,463.45 is: 86,190.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,785.72 : 254,663.89 = 57,463.45 : x
  2. Step 2: Convert to fraction form
    169,785.72/254,663.89 = 57,463.45/x
  3. Step 3: Cross multiply
    169,785.72x = 254,663.89 × 57,463.45
  4. Step 4: Simplify right side
    169,785.72x = 14,633,865,709.82
  5. Step 5: Solve for x
    x = 14,633,865,709.82/169,785.72
  6. Step 6: Final answer
    x = 86,190.20

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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.