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Finding the Fourth Proportional to 101,436.60, 152,025.30 and 73,702.20

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Solution

The fourth proportional to 101,436.60, 152,025.30 and 73,702.20 is: 110,459.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,436.60 : 152,025.30 = 73,702.20 : x
  2. Step 2: Convert to fraction form
    101,436.60/152,025.30 = 73,702.20/x
  3. Step 3: Cross multiply
    101,436.60x = 152,025.30 × 73,702.20
  4. Step 4: Simplify right side
    101,436.60x = 11,204,599,065.66
  5. Step 5: Solve for x
    x = 11,204,599,065.66/101,436.60
  6. Step 6: Final answer
    x = 110,459.13

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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.