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Finding the Fourth Proportional to 168,005.30, 252,035.40 and 49,688.60

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Solution

The fourth proportional to 168,005.30, 252,035.40 and 49,688.60 is: 74,541.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,005.30 : 252,035.40 = 49,688.60 : x
  2. Step 2: Convert to fraction form
    168,005.30/252,035.40 = 49,688.60/x
  3. Step 3: Cross multiply
    168,005.30x = 252,035.40 × 49,688.60
  4. Step 4: Simplify right side
    168,005.30x = 12,523,286,176.44
  5. Step 5: Solve for x
    x = 12,523,286,176.44/168,005.30
  6. Step 6: Final answer
    x = 74,541.02

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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.