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Finding the Fourth Proportional to 374,831.20, 562,441.20 and 164,490.40

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Solution

The fourth proportional to 374,831.20, 562,441.20 and 164,490.40 is: 246,820.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,831.20 : 562,441.20 = 164,490.40 : x
  2. Step 2: Convert to fraction form
    374,831.20/562,441.20 = 164,490.40/x
  3. Step 3: Cross multiply
    374,831.20x = 562,441.20 × 164,490.40
  4. Step 4: Simplify right side
    374,831.20x = 92,516,177,964.48
  5. Step 5: Solve for x
    x = 92,516,177,964.48/374,831.20
  6. Step 6: Final answer
    x = 246,820.91

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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.