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Finding the Fourth Proportional to 178,592.10, 267,699.15 and 66,200.10

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Solution

The fourth proportional to 178,592.10, 267,699.15 and 66,200.10 is: 99,230.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,592.10 : 267,699.15 = 66,200.10 : x
  2. Step 2: Convert to fraction form
    178,592.10/267,699.15 = 66,200.10/x
  3. Step 3: Cross multiply
    178,592.10x = 267,699.15 × 66,200.10
  4. Step 4: Simplify right side
    178,592.10x = 17,721,710,499.92
  5. Step 5: Solve for x
    x = 17,721,710,499.92/178,592.10
  6. Step 6: Final answer
    x = 99,230.09

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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.