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Finding the Fourth Proportional to 545,856.76, 818,909.76 and 166,831.44

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Solution

The fourth proportional to 545,856.76, 818,909.76 and 166,831.44 is: 250,285.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,856.76 : 818,909.76 = 166,831.44 : x
  2. Step 2: Convert to fraction form
    545,856.76/818,909.76 = 166,831.44/x
  3. Step 3: Cross multiply
    545,856.76x = 818,909.76 × 166,831.44
  4. Step 4: Simplify right side
    545,856.76x = 136,619,894,490.85
  5. Step 5: Solve for x
    x = 136,619,894,490.85/545,856.76
  6. Step 6: Final answer
    x = 250,285.25

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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.