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Finding the Fourth Proportional to 194,978.60, 292,467.90 and 164,911.40

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Solution

The fourth proportional to 194,978.60, 292,467.90 and 164,911.40 is: 247,367.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,978.60 : 292,467.90 = 164,911.40 : x
  2. Step 2: Convert to fraction form
    194,978.60/292,467.90 = 164,911.40/x
  3. Step 3: Cross multiply
    194,978.60x = 292,467.90 × 164,911.40
  4. Step 4: Simplify right side
    194,978.60x = 48,231,290,844.06
  5. Step 5: Solve for x
    x = 48,231,290,844.06/194,978.60
  6. Step 6: Final answer
    x = 247,367.10

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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.