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Finding the Fourth Proportional to 374,810.20, 562,409.70 and 164,469.40

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Solution

The fourth proportional to 374,810.20, 562,409.70 and 164,469.40 is: 246,789.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,810.20 : 562,409.70 = 164,469.40 : x
  2. Step 2: Convert to fraction form
    374,810.20/562,409.70 = 164,469.40/x
  3. Step 3: Cross multiply
    374,810.20x = 562,409.70 × 164,469.40
  4. Step 4: Simplify right side
    374,810.20x = 92,499,185,913.18
  5. Step 5: Solve for x
    x = 92,499,185,913.18/374,810.20
  6. Step 6: Final answer
    x = 246,789.40

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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.