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Finding the Fourth Proportional to 292,168.44, 438,318.36 and 92,500.80

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Solution

The fourth proportional to 292,168.44, 438,318.36 and 92,500.80 is: 138,772.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,168.44 : 438,318.36 = 92,500.80 : x
  2. Step 2: Convert to fraction form
    292,168.44/438,318.36 = 92,500.80/x
  3. Step 3: Cross multiply
    292,168.44x = 438,318.36 × 92,500.80
  4. Step 4: Simplify right side
    292,168.44x = 40,544,798,954.69
  5. Step 5: Solve for x
    x = 40,544,798,954.69/292,168.44
  6. Step 6: Final answer
    x = 138,772.00

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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.