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Finding the Fourth Proportional to 295,111.40, 442,667.30 and 126,522.86

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Solution

The fourth proportional to 295,111.40, 442,667.30 and 126,522.86 is: 189,784.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,111.40 : 442,667.30 = 126,522.86 : x
  2. Step 2: Convert to fraction form
    295,111.40/442,667.30 = 126,522.86/x
  3. Step 3: Cross multiply
    295,111.40x = 442,667.30 × 126,522.86
  4. Step 4: Simplify right side
    295,111.40x = 56,007,529,978.53
  5. Step 5: Solve for x
    x = 56,007,529,978.53/295,111.40
  6. Step 6: Final answer
    x = 189,784.37

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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.