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Finding the Fourth Proportional to 248,224.94, 342,535.92 and 139,319.16

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Solution

The fourth proportional to 248,224.94, 342,535.92 and 139,319.16 is: 192,252.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,224.94 : 342,535.92 = 139,319.16 : x
  2. Step 2: Convert to fraction form
    248,224.94/342,535.92 = 139,319.16/x
  3. Step 3: Cross multiply
    248,224.94x = 342,535.92 × 139,319.16
  4. Step 4: Simplify right side
    248,224.94x = 47,721,816,644.23
  5. Step 5: Solve for x
    x = 47,721,816,644.23/248,224.94
  6. Step 6: Final answer
    x = 192,252.31

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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.