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Finding the Fourth Proportional to 290,792.76, 401,293.62 and 163,468.86

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Solution

The fourth proportional to 290,792.76, 401,293.62 and 163,468.86 is: 225,586.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,792.76 : 401,293.62 = 163,468.86 : x
  2. Step 2: Convert to fraction form
    290,792.76/401,293.62 = 163,468.86/x
  3. Step 3: Cross multiply
    290,792.76x = 401,293.62 × 163,468.86
  4. Step 4: Simplify right side
    290,792.76x = 65,599,010,586.67
  5. Step 5: Solve for x
    x = 65,599,010,586.67/290,792.76
  6. Step 6: Final answer
    x = 225,586.81

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.