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Finding the Fourth Proportional to 70,650.60, 106,012.24 and 39,054.76

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Solution

The fourth proportional to 70,650.60, 106,012.24 and 39,054.76 is: 58,602.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,650.60 : 106,012.24 = 39,054.76 : x
  2. Step 2: Convert to fraction form
    70,650.60/106,012.24 = 39,054.76/x
  3. Step 3: Cross multiply
    70,650.60x = 106,012.24 × 39,054.76
  4. Step 4: Simplify right side
    70,650.60x = 4,140,282,590.26
  5. Step 5: Solve for x
    x = 4,140,282,590.26/70,650.60
  6. Step 6: Final answer
    x = 58,602.23

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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.