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Finding the Fourth Proportional to 178,598.88, 267,898.36 and 139,185.52

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Solution

The fourth proportional to 178,598.88, 267,898.36 and 139,185.52 is: 208,778.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,598.88 : 267,898.36 = 139,185.52 : x
  2. Step 2: Convert to fraction form
    178,598.88/267,898.36 = 139,185.52/x
  3. Step 3: Cross multiply
    178,598.88x = 267,898.36 × 139,185.52
  4. Step 4: Simplify right side
    178,598.88x = 37,287,572,543.75
  5. Step 5: Solve for x
    x = 37,287,572,543.75/178,598.88
  6. Step 6: Final answer
    x = 208,778.31

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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.