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Finding the Fourth Proportional to 298,528.50, 411,963.42 and 162,564.06

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Solution

The fourth proportional to 298,528.50, 411,963.42 and 162,564.06 is: 224,335.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,528.50 : 411,963.42 = 162,564.06 : x
  2. Step 2: Convert to fraction form
    298,528.50/411,963.42 = 162,564.06/x
  3. Step 3: Cross multiply
    298,528.50x = 411,963.42 × 162,564.06
  4. Step 4: Simplify right side
    298,528.50x = 66,970,446,126.69
  5. Step 5: Solve for x
    x = 66,970,446,126.69/298,528.50
  6. Step 6: Final answer
    x = 224,335.18

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.