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Finding the Fourth Proportional to 248,416.80, 372,625.20 and 124,000.80

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Solution

The fourth proportional to 248,416.80, 372,625.20 and 124,000.80 is: 186,001.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,416.80 : 372,625.20 = 124,000.80 : x
  2. Step 2: Convert to fraction form
    248,416.80/372,625.20 = 124,000.80/x
  3. Step 3: Cross multiply
    248,416.80x = 372,625.20 × 124,000.80
  4. Step 4: Simplify right side
    248,416.80x = 46,205,822,900.16
  5. Step 5: Solve for x
    x = 46,205,822,900.16/248,416.80
  6. Step 6: Final answer
    x = 186,001.20

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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.