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Finding the Fourth Proportional to 155,885.79, 214,828.44 and 112,792.32

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Solution

The fourth proportional to 155,885.79, 214,828.44 and 112,792.32 is: 155,440.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,885.79 : 214,828.44 = 112,792.32 : x
  2. Step 2: Convert to fraction form
    155,885.79/214,828.44 = 112,792.32/x
  3. Step 3: Cross multiply
    155,885.79x = 214,828.44 × 112,792.32
  4. Step 4: Simplify right side
    155,885.79x = 24,230,998,149.58
  5. Step 5: Solve for x
    x = 24,230,998,149.58/155,885.79
  6. Step 6: Final answer
    x = 155,440.71

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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.