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Finding the Fourth Proportional to 53,495.60, 80,166.60 and 39,345.20

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Solution

The fourth proportional to 53,495.60, 80,166.60 and 39,345.20 is: 58,961.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,495.60 : 80,166.60 = 39,345.20 : x
  2. Step 2: Convert to fraction form
    53,495.60/80,166.60 = 39,345.20/x
  3. Step 3: Cross multiply
    53,495.60x = 80,166.60 × 39,345.20
  4. Step 4: Simplify right side
    53,495.60x = 3,154,170,910.32
  5. Step 5: Solve for x
    x = 3,154,170,910.32/53,495.60
  6. Step 6: Final answer
    x = 58,961.31

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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.