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Finding the Fourth Proportional to 162,621.78, 224,388.54 and 93,700.50

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Solution

The fourth proportional to 162,621.78, 224,388.54 and 93,700.50 is: 129,289.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,621.78 : 224,388.54 = 93,700.50 : x
  2. Step 2: Convert to fraction form
    162,621.78/224,388.54 = 93,700.50/x
  3. Step 3: Cross multiply
    162,621.78x = 224,388.54 × 93,700.50
  4. Step 4: Simplify right side
    162,621.78x = 21,025,318,392.27
  5. Step 5: Solve for x
    x = 21,025,318,392.27/162,621.78
  6. Step 6: Final answer
    x = 129,289.68

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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.