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Finding the Fourth Proportional to 207,195.93, 310,763.09 and 57,420.60

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Solution

The fourth proportional to 207,195.93, 310,763.09 and 57,420.60 is: 86,122.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,195.93 : 310,763.09 = 57,420.60 : x
  2. Step 2: Convert to fraction form
    207,195.93/310,763.09 = 57,420.60/x
  3. Step 3: Cross multiply
    207,195.93x = 310,763.09 × 57,420.60
  4. Step 4: Simplify right side
    207,195.93x = 17,844,203,085.65
  5. Step 5: Solve for x
    x = 17,844,203,085.65/207,195.93
  6. Step 6: Final answer
    x = 86,122.36

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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.