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Finding the Fourth Proportional to 142,792.60, 214,124.10 and 54,016.60

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Solution

The fourth proportional to 142,792.60, 214,124.10 and 54,016.60 is: 81,000.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,792.60 : 214,124.10 = 54,016.60 : x
  2. Step 2: Convert to fraction form
    142,792.60/214,124.10 = 54,016.60/x
  3. Step 3: Cross multiply
    142,792.60x = 214,124.10 × 54,016.60
  4. Step 4: Simplify right side
    142,792.60x = 11,566,255,860.06
  5. Step 5: Solve for x
    x = 11,566,255,860.06/142,792.60
  6. Step 6: Final answer
    x = 81,000.39

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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.