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Finding the Fourth Proportional to 84,416.60, 126,594.05 and 36,999

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Solution

The fourth proportional to 84,416.60, 126,594.05 and 36,999 is: 55,484.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,416.60 : 126,594.05 = 36,999 : x
  2. Step 2: Convert to fraction form
    84,416.60/126,594.05 = 36,999/x
  3. Step 3: Cross multiply
    84,416.60x = 126,594.05 × 36,999
  4. Step 4: Simplify right side
    84,416.60x = 4,683,853,070.96
  5. Step 5: Solve for x
    x = 4,683,853,070.96/84,416.60
  6. Step 6: Final answer
    x = 55,484.98

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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.