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Finding the Fourth Proportional to 84,702.60, 127,112.04 and 29,298.60

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Solution

The fourth proportional to 84,702.60, 127,112.04 and 29,298.60 is: 43,968.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,702.60 : 127,112.04 = 29,298.60 : x
  2. Step 2: Convert to fraction form
    84,702.60/127,112.04 = 29,298.60/x
  3. Step 3: Cross multiply
    84,702.60x = 127,112.04 × 29,298.60
  4. Step 4: Simplify right side
    84,702.60x = 3,724,204,815.14
  5. Step 5: Solve for x
    x = 3,724,204,815.14/84,702.60
  6. Step 6: Final answer
    x = 43,968.01

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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.