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Finding the Fourth Proportional to 113,569.60, 156,714.60 and 65,837.92

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Solution

The fourth proportional to 113,569.60, 156,714.60 and 65,837.92 is: 90,849.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,569.60 : 156,714.60 = 65,837.92 : x
  2. Step 2: Convert to fraction form
    113,569.60/156,714.60 = 65,837.92/x
  3. Step 3: Cross multiply
    113,569.60x = 156,714.60 × 65,837.92
  4. Step 4: Simplify right side
    113,569.60x = 10,317,763,297.63
  5. Step 5: Solve for x
    x = 10,317,763,297.63/113,569.60
  6. Step 6: Final answer
    x = 90,849.69

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.