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Finding the Fourth Proportional to 292,778.32, 438,828.56 and 134,674.96

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Solution

The fourth proportional to 292,778.32, 438,828.56 and 134,674.96 is: 201,856.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,778.32 : 438,828.56 = 134,674.96 : x
  2. Step 2: Convert to fraction form
    292,778.32/438,828.56 = 134,674.96/x
  3. Step 3: Cross multiply
    292,778.32x = 438,828.56 × 134,674.96
  4. Step 4: Simplify right side
    292,778.32x = 59,099,218,764.86
  5. Step 5: Solve for x
    x = 59,099,218,764.86/292,778.32
  6. Step 6: Final answer
    x = 201,856.54

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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.