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Finding the Fourth Proportional to 54,260.70, 81,477.45 and 36,807.90

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Solution

The fourth proportional to 54,260.70, 81,477.45 and 36,807.90 is: 55,270.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,260.70 : 81,477.45 = 36,807.90 : x
  2. Step 2: Convert to fraction form
    54,260.70/81,477.45 = 36,807.90/x
  3. Step 3: Cross multiply
    54,260.70x = 81,477.45 × 36,807.90
  4. Step 4: Simplify right side
    54,260.70x = 2,999,013,831.86
  5. Step 5: Solve for x
    x = 2,999,013,831.86/54,260.70
  6. Step 6: Final answer
    x = 55,270.46

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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.