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Finding the Fourth Proportional to 374,441.40, 561,662.10 and 164,489.40

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Solution

The fourth proportional to 374,441.40, 561,662.10 and 164,489.40 is: 246,734.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,441.40 : 561,662.10 = 164,489.40 : x
  2. Step 2: Convert to fraction form
    374,441.40/561,662.10 = 164,489.40/x
  3. Step 3: Cross multiply
    374,441.40x = 561,662.10 × 164,489.40
  4. Step 4: Simplify right side
    374,441.40x = 92,387,461,831.74
  5. Step 5: Solve for x
    x = 92,387,461,831.74/374,441.40
  6. Step 6: Final answer
    x = 246,734.10

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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.