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Finding the Fourth Proportional to 100,498.50, 150,550.61 and 58,289.90

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Solution

The fourth proportional to 100,498.50, 150,550.61 and 58,289.90 is: 87,320.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,498.50 : 150,550.61 = 58,289.90 : x
  2. Step 2: Convert to fraction form
    100,498.50/150,550.61 = 58,289.90/x
  3. Step 3: Cross multiply
    100,498.50x = 150,550.61 × 58,289.90
  4. Step 4: Simplify right side
    100,498.50x = 8,775,578,957.64
  5. Step 5: Solve for x
    x = 8,775,578,957.64/100,498.50
  6. Step 6: Final answer
    x = 87,320.50

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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.