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Finding the Fourth Proportional to 144,928.60, 217,220.10 and 60,688.60

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Solution

The fourth proportional to 144,928.60, 217,220.10 and 60,688.60 is: 90,960.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,928.60 : 217,220.10 = 60,688.60 : x
  2. Step 2: Convert to fraction form
    144,928.60/217,220.10 = 60,688.60/x
  3. Step 3: Cross multiply
    144,928.60x = 217,220.10 × 60,688.60
  4. Step 4: Simplify right side
    144,928.60x = 13,182,783,760.86
  5. Step 5: Solve for x
    x = 13,182,783,760.86/144,928.60
  6. Step 6: Final answer
    x = 90,960.54

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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.