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Finding the Fourth Proportional to 113,869.60, 170,804.40 and 43,750.60

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Solution

The fourth proportional to 113,869.60, 170,804.40 and 43,750.60 is: 65,625.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,869.60 : 170,804.40 = 43,750.60 : x
  2. Step 2: Convert to fraction form
    113,869.60/170,804.40 = 43,750.60/x
  3. Step 3: Cross multiply
    113,869.60x = 170,804.40 × 43,750.60
  4. Step 4: Simplify right side
    113,869.60x = 7,472,794,982.64
  5. Step 5: Solve for x
    x = 7,472,794,982.64/113,869.60
  6. Step 6: Final answer
    x = 65,625.90

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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.