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Finding the Fourth Proportional to 264,005.80, 396,008.70 and 164,278.60

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Solution

The fourth proportional to 264,005.80, 396,008.70 and 164,278.60 is: 246,417.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,005.80 : 396,008.70 = 164,278.60 : x
  2. Step 2: Convert to fraction form
    264,005.80/396,008.70 = 164,278.60/x
  3. Step 3: Cross multiply
    264,005.80x = 396,008.70 × 164,278.60
  4. Step 4: Simplify right side
    264,005.80x = 65,055,754,823.82
  5. Step 5: Solve for x
    x = 65,055,754,823.82/264,005.80
  6. Step 6: Final answer
    x = 246,417.90

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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.