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Finding the Fourth Proportional to 248,862.80, 372,775.80 and 207,390.80

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Solution

The fourth proportional to 248,862.80, 372,775.80 and 207,390.80 is: 310,654.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,862.80 : 372,775.80 = 207,390.80 : x
  2. Step 2: Convert to fraction form
    248,862.80/372,775.80 = 207,390.80/x
  3. Step 3: Cross multiply
    248,862.80x = 372,775.80 × 207,390.80
  4. Step 4: Simplify right side
    248,862.80x = 77,310,271,382.64
  5. Step 5: Solve for x
    x = 77,310,271,382.64/248,862.80
  6. Step 6: Final answer
    x = 310,654.19

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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.