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Finding the Fourth Proportional to 70,680.60, 106,009.76 and 58,749.37

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Solution

The fourth proportional to 70,680.60, 106,009.76 and 58,749.37 is: 88,114.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,680.60 : 106,009.76 = 58,749.37 : x
  2. Step 2: Convert to fraction form
    70,680.60/106,009.76 = 58,749.37/x
  3. Step 3: Cross multiply
    70,680.60x = 106,009.76 × 58,749.37
  4. Step 4: Simplify right side
    70,680.60x = 6,228,006,495.70
  5. Step 5: Solve for x
    x = 6,228,006,495.70/70,680.60
  6. Step 6: Final answer
    x = 88,114.79

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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.