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Finding the Fourth Proportional to 292,480.80, 438,429.60 and 134,433.60

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Solution

The fourth proportional to 292,480.80, 438,429.60 and 134,433.60 is: 201,516.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,480.80 : 438,429.60 = 134,433.60 : x
  2. Step 2: Convert to fraction form
    292,480.80/438,429.60 = 134,433.60/x
  3. Step 3: Cross multiply
    292,480.80x = 438,429.60 × 134,433.60
  4. Step 4: Simplify right side
    292,480.80x = 58,939,669,474.56
  5. Step 5: Solve for x
    x = 58,939,669,474.56/292,480.80
  6. Step 6: Final answer
    x = 201,516.37

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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.