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Finding the Fourth Proportional to 295,143.75, 442,790.35 and 84,781.69

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Solution

The fourth proportional to 295,143.75, 442,790.35 and 84,781.69 is: 127,194.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,143.75 : 442,790.35 = 84,781.69 : x
  2. Step 2: Convert to fraction form
    295,143.75/442,790.35 = 84,781.69/x
  3. Step 3: Cross multiply
    295,143.75x = 442,790.35 × 84,781.69
  4. Step 4: Simplify right side
    295,143.75x = 37,540,512,869.76
  5. Step 5: Solve for x
    x = 37,540,512,869.76/295,143.75
  6. Step 6: Final answer
    x = 127,194.00

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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.