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Finding the Fourth Proportional to 229,346.60, 343,801.20 and 178,717.55

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Solution

The fourth proportional to 229,346.60, 343,801.20 and 178,717.55 is: 267,905.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,346.60 : 343,801.20 = 178,717.55 : x
  2. Step 2: Convert to fraction form
    229,346.60/343,801.20 = 178,717.55/x
  3. Step 3: Cross multiply
    229,346.60x = 343,801.20 × 178,717.55
  4. Step 4: Simplify right side
    229,346.60x = 61,443,308,151.06
  5. Step 5: Solve for x
    x = 61,443,308,151.06/229,346.60
  6. Step 6: Final answer
    x = 267,905.90

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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.