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Finding the Fourth Proportional to 374,811.20, 562,411.20 and 164,470.40

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Solution

The fourth proportional to 374,811.20, 562,411.20 and 164,470.40 is: 246,790.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,811.20 : 562,411.20 = 164,470.40 : x
  2. Step 2: Convert to fraction form
    374,811.20/562,411.20 = 164,470.40/x
  3. Step 3: Cross multiply
    374,811.20x = 562,411.20 × 164,470.40
  4. Step 4: Simplify right side
    374,811.20x = 92,499,995,028.48
  5. Step 5: Solve for x
    x = 92,499,995,028.48/374,811.20
  6. Step 6: Final answer
    x = 246,790.90

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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.