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Finding the Fourth Proportional to 374,226.80, 561,167.40 and 163,756.40

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Solution

The fourth proportional to 374,226.80, 561,167.40 and 163,756.40 is: 245,558.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,226.80 : 561,167.40 = 163,756.40 : x
  2. Step 2: Convert to fraction form
    374,226.80/561,167.40 = 163,756.40/x
  3. Step 3: Cross multiply
    374,226.80x = 561,167.40 × 163,756.40
  4. Step 4: Simplify right side
    374,226.80x = 91,894,753,221.36
  5. Step 5: Solve for x
    x = 91,894,753,221.36/374,226.80
  6. Step 6: Final answer
    x = 245,558.99

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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.