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Finding the Fourth Proportional to 93,793.98, 129,348.25 and 86,827.46

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Solution

The fourth proportional to 93,793.98, 129,348.25 and 86,827.46 is: 119,740.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,793.98 : 129,348.25 = 86,827.46 : x
  2. Step 2: Convert to fraction form
    93,793.98/129,348.25 = 86,827.46/x
  3. Step 3: Cross multiply
    93,793.98x = 129,348.25 × 86,827.46
  4. Step 4: Simplify right side
    93,793.98x = 11,230,979,624.19
  5. Step 5: Solve for x
    x = 11,230,979,624.19/93,793.98
  6. Step 6: Final answer
    x = 119,740.94

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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.