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Finding the Fourth Proportional to 534,879.90, 802,356.77 and 155,803.79

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Solution

The fourth proportional to 534,879.90, 802,356.77 and 155,803.79 is: 233,716.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    534,879.90 : 802,356.77 = 155,803.79 : x
  2. Step 2: Convert to fraction form
    534,879.90/802,356.77 = 155,803.79/x
  3. Step 3: Cross multiply
    534,879.90x = 802,356.77 × 155,803.79
  4. Step 4: Simplify right side
    534,879.90x = 125,010,220,907.36
  5. Step 5: Solve for x
    x = 125,010,220,907.36/534,879.90
  6. Step 6: Final answer
    x = 233,716.43

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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.