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Finding the Fourth Proportional to 379,661.67, 569,502.72 and 166,319.82

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Solution

The fourth proportional to 379,661.67, 569,502.72 and 166,319.82 is: 249,484.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,661.67 : 569,502.72 = 166,319.82 : x
  2. Step 2: Convert to fraction form
    379,661.67/569,502.72 = 166,319.82/x
  3. Step 3: Cross multiply
    379,661.67x = 569,502.72 × 166,319.82
  4. Step 4: Simplify right side
    379,661.67x = 94,719,589,879.91
  5. Step 5: Solve for x
    x = 94,719,589,879.91/379,661.67
  6. Step 6: Final answer
    x = 249,484.20

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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.