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Finding the Fourth Proportional to 109,843.60, 164,792.40 and 30,956.80

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Solution

The fourth proportional to 109,843.60, 164,792.40 and 30,956.80 is: 46,442.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,843.60 : 164,792.40 = 30,956.80 : x
  2. Step 2: Convert to fraction form
    109,843.60/164,792.40 = 30,956.80/x
  3. Step 3: Cross multiply
    109,843.60x = 164,792.40 × 30,956.80
  4. Step 4: Simplify right side
    109,843.60x = 5,101,445,368.32
  5. Step 5: Solve for x
    x = 5,101,445,368.32/109,843.60
  6. Step 6: Final answer
    x = 46,442.81

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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.