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Finding the Fourth Proportional to 517,652.60, 776,441.76 and 162,768.10

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Solution

The fourth proportional to 517,652.60, 776,441.76 and 162,768.10 is: 244,140.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,652.60 : 776,441.76 = 162,768.10 : x
  2. Step 2: Convert to fraction form
    517,652.60/776,441.76 = 162,768.10/x
  3. Step 3: Cross multiply
    517,652.60x = 776,441.76 × 162,768.10
  4. Step 4: Simplify right side
    517,652.60x = 126,379,950,035.86
  5. Step 5: Solve for x
    x = 126,379,950,035.86/517,652.60
  6. Step 6: Final answer
    x = 244,140.47

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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.