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Finding the Fourth Proportional to 352,907.70, 487,015.71 and 191,762.74

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Solution

The fourth proportional to 352,907.70, 487,015.71 and 191,762.74 is: 264,634.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,907.70 : 487,015.71 = 191,762.74 : x
  2. Step 2: Convert to fraction form
    352,907.70/487,015.71 = 191,762.74/x
  3. Step 3: Cross multiply
    352,907.70x = 487,015.71 × 191,762.74
  4. Step 4: Simplify right side
    352,907.70x = 93,391,468,232.04
  5. Step 5: Solve for x
    x = 93,391,468,232.04/352,907.70
  6. Step 6: Final answer
    x = 264,634.26

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.