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Finding the Fourth Proportional to 295,162.60, 442,671.90 and 84,778.60

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Solution

The fourth proportional to 295,162.60, 442,671.90 and 84,778.60 is: 127,147.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,162.60 : 442,671.90 = 84,778.60 : x
  2. Step 2: Convert to fraction form
    295,162.60/442,671.90 = 84,778.60/x
  3. Step 3: Cross multiply
    295,162.60x = 442,671.90 × 84,778.60
  4. Step 4: Simplify right side
    295,162.60x = 37,529,103,941.34
  5. Step 5: Solve for x
    x = 37,529,103,941.34/295,162.60
  6. Step 6: Final answer
    x = 127,147.22

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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.