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Finding the Fourth Proportional to 352,585.65, 486,571.74 and 191,442.03

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Solution

The fourth proportional to 352,585.65, 486,571.74 and 191,442.03 is: 264,191.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,585.65 : 486,571.74 = 191,442.03 : x
  2. Step 2: Convert to fraction form
    352,585.65/486,571.74 = 191,442.03/x
  3. Step 3: Cross multiply
    352,585.65x = 486,571.74 × 191,442.03
  4. Step 4: Simplify right side
    352,585.65x = 93,150,281,646.23
  5. Step 5: Solve for x
    x = 93,150,281,646.23/352,585.65
  6. Step 6: Final answer
    x = 264,191.93

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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.