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Finding the Fourth Proportional to 493,752.67, 740,628.92 and 138,766.69

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Solution

The fourth proportional to 493,752.67, 740,628.92 and 138,766.69 is: 208,150.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,752.67 : 740,628.92 = 138,766.69 : x
  2. Step 2: Convert to fraction form
    493,752.67/740,628.92 = 138,766.69/x
  3. Step 3: Cross multiply
    493,752.67x = 740,628.92 × 138,766.69
  4. Step 4: Simplify right side
    493,752.67x = 102,774,621,635.05
  5. Step 5: Solve for x
    x = 102,774,621,635.05/493,752.67
  6. Step 6: Final answer
    x = 208,150.01

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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.