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Finding the Fourth Proportional to 93,427.20, 140,140.80 and 34,243.20

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Solution

The fourth proportional to 93,427.20, 140,140.80 and 34,243.20 is: 51,364.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,427.20 : 140,140.80 = 34,243.20 : x
  2. Step 2: Convert to fraction form
    93,427.20/140,140.80 = 34,243.20/x
  3. Step 3: Cross multiply
    93,427.20x = 140,140.80 × 34,243.20
  4. Step 4: Simplify right side
    93,427.20x = 4,798,869,442.56
  5. Step 5: Solve for x
    x = 4,798,869,442.56/93,427.20
  6. Step 6: Final answer
    x = 51,364.80

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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.