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Finding the Fourth Proportional to 262,269.60, 393,404.13 and 104,608.77

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Solution

The fourth proportional to 262,269.60, 393,404.13 and 104,608.77 is: 156,913.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,269.60 : 393,404.13 = 104,608.77 : x
  2. Step 2: Convert to fraction form
    262,269.60/393,404.13 = 104,608.77/x
  3. Step 3: Cross multiply
    262,269.60x = 393,404.13 × 104,608.77
  4. Step 4: Simplify right side
    262,269.60x = 41,153,522,152.22
  5. Step 5: Solve for x
    x = 41,153,522,152.22/262,269.60
  6. Step 6: Final answer
    x = 156,913.05

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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.