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Finding the Fourth Proportional to 101,973.60, 152,632.86 and 54,469.91

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Solution

The fourth proportional to 101,973.60, 152,632.86 and 54,469.91 is: 81,529.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,973.60 : 152,632.86 = 54,469.91 : x
  2. Step 2: Convert to fraction form
    101,973.60/152,632.86 = 54,469.91/x
  3. Step 3: Cross multiply
    101,973.60x = 152,632.86 × 54,469.91
  4. Step 4: Simplify right side
    101,973.60x = 8,313,898,048.48
  5. Step 5: Solve for x
    x = 8,313,898,048.48/101,973.60
  6. Step 6: Final answer
    x = 81,529.91

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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.