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Finding the Fourth Proportional to 78,903.60, 118,251.72 and 37,362.48

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Solution

The fourth proportional to 78,903.60, 118,251.72 and 37,362.48 is: 55,994.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,903.60 : 118,251.72 = 37,362.48 : x
  2. Step 2: Convert to fraction form
    78,903.60/118,251.72 = 37,362.48/x
  3. Step 3: Cross multiply
    78,903.60x = 118,251.72 × 37,362.48
  4. Step 4: Simplify right side
    78,903.60x = 4,418,177,523.47
  5. Step 5: Solve for x
    x = 4,418,177,523.47/78,903.60
  6. Step 6: Final answer
    x = 55,994.63

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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.