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Finding the Fourth Proportional to 142,898.76, 214,356.24 and 43,072.74

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Solution

The fourth proportional to 142,898.76, 214,356.24 and 43,072.74 is: 64,611.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,898.76 : 214,356.24 = 43,072.74 : x
  2. Step 2: Convert to fraction form
    142,898.76/214,356.24 = 43,072.74/x
  3. Step 3: Cross multiply
    142,898.76x = 214,356.24 × 43,072.74
  4. Step 4: Simplify right side
    142,898.76x = 9,232,910,592.90
  5. Step 5: Solve for x
    x = 9,232,910,592.90/142,898.76
  6. Step 6: Final answer
    x = 64,611.55

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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.