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Finding the Fourth Proportional to 152,620.60, 228,768.90 and 73,683.40

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Solution

The fourth proportional to 152,620.60, 228,768.90 and 73,683.40 is: 110,446.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,620.60 : 228,768.90 = 73,683.40 : x
  2. Step 2: Convert to fraction form
    152,620.60/228,768.90 = 73,683.40/x
  3. Step 3: Cross multiply
    152,620.60x = 228,768.90 × 73,683.40
  4. Step 4: Simplify right side
    152,620.60x = 16,856,470,366.26
  5. Step 5: Solve for x
    x = 16,856,470,366.26/152,620.60
  6. Step 6: Final answer
    x = 110,446.89

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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.