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Finding the Fourth Proportional to 115,336.40, 172,908.60 and 48,827.60

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Solution

The fourth proportional to 115,336.40, 172,908.60 and 48,827.60 is: 73,200.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,336.40 : 172,908.60 = 48,827.60 : x
  2. Step 2: Convert to fraction form
    115,336.40/172,908.60 = 48,827.60/x
  3. Step 3: Cross multiply
    115,336.40x = 172,908.60 × 48,827.60
  4. Step 4: Simplify right side
    115,336.40x = 8,442,711,957.36
  5. Step 5: Solve for x
    x = 8,442,711,957.36/115,336.40
  6. Step 6: Final answer
    x = 73,200.76

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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.