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Finding the Fourth Proportional to 373,979.20, 560,954.40 and 124,661.20

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Solution

The fourth proportional to 373,979.20, 560,954.40 and 124,661.20 is: 186,987.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,979.20 : 560,954.40 = 124,661.20 : x
  2. Step 2: Convert to fraction form
    373,979.20/560,954.40 = 124,661.20/x
  3. Step 3: Cross multiply
    373,979.20x = 560,954.40 × 124,661.20
  4. Step 4: Simplify right side
    373,979.20x = 69,929,248,649.28
  5. Step 5: Solve for x
    x = 69,929,248,649.28/373,979.20
  6. Step 6: Final answer
    x = 186,987.00

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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.