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Finding the Fourth Proportional to 169,613.89, 255,639.99 and 146,203.98

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Solution

The fourth proportional to 169,613.89, 255,639.99 and 146,203.98 is: 220,356.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,613.89 : 255,639.99 = 146,203.98 : x
  2. Step 2: Convert to fraction form
    169,613.89/255,639.99 = 146,203.98/x
  3. Step 3: Cross multiply
    169,613.89x = 255,639.99 × 146,203.98
  4. Step 4: Simplify right side
    169,613.89x = 37,375,583,985.16
  5. Step 5: Solve for x
    x = 37,375,583,985.16/169,613.89
  6. Step 6: Final answer
    x = 220,356.86

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.