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Finding the Fourth Proportional to 178,592.90, 267,889.35 and 139,179.50

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Solution

The fourth proportional to 178,592.90, 267,889.35 and 139,179.50 is: 208,769.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,592.90 : 267,889.35 = 139,179.50 : x
  2. Step 2: Convert to fraction form
    178,592.90/267,889.35 = 139,179.50/x
  3. Step 3: Cross multiply
    178,592.90x = 267,889.35 × 139,179.50
  4. Step 4: Simplify right side
    178,592.90x = 37,284,705,788.33
  5. Step 5: Solve for x
    x = 37,284,705,788.33/178,592.90
  6. Step 6: Final answer
    x = 208,769.25

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1.5x scale

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.