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Finding the Fourth Proportional to 147,218.80, 220,831.80 and 53,724.52

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Solution

The fourth proportional to 147,218.80, 220,831.80 and 53,724.52 is: 80,588.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,218.80 : 220,831.80 = 53,724.52 : x
  2. Step 2: Convert to fraction form
    147,218.80/220,831.80 = 53,724.52/x
  3. Step 3: Cross multiply
    147,218.80x = 220,831.80 × 53,724.52
  4. Step 4: Simplify right side
    147,218.80x = 11,864,082,455.74
  5. Step 5: Solve for x
    x = 11,864,082,455.74/147,218.80
  6. Step 6: Final answer
    x = 80,588.09

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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.