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Finding the Fourth Proportional to 176,143.60, 264,215.40 and 162,665.20

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Solution

The fourth proportional to 176,143.60, 264,215.40 and 162,665.20 is: 243,997.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,143.60 : 264,215.40 = 162,665.20 : x
  2. Step 2: Convert to fraction form
    176,143.60/264,215.40 = 162,665.20/x
  3. Step 3: Cross multiply
    176,143.60x = 264,215.40 × 162,665.20
  4. Step 4: Simplify right side
    176,143.60x = 42,978,650,884.08
  5. Step 5: Solve for x
    x = 42,978,650,884.08/176,143.60
  6. Step 6: Final answer
    x = 243,997.80

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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.