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Finding the Fourth Proportional to 89,795.40, 134,693.10 and 61,801.80

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Solution

The fourth proportional to 89,795.40, 134,693.10 and 61,801.80 is: 92,702.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,795.40 : 134,693.10 = 61,801.80 : x
  2. Step 2: Convert to fraction form
    89,795.40/134,693.10 = 61,801.80/x
  3. Step 3: Cross multiply
    89,795.40x = 134,693.10 × 61,801.80
  4. Step 4: Simplify right side
    89,795.40x = 8,324,276,027.58
  5. Step 5: Solve for x
    x = 8,324,276,027.58/89,795.40
  6. Step 6: Final answer
    x = 92,702.70

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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.