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Finding the Fourth Proportional to 373,920.88, 560,547.84 and 137,208.64

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Solution

The fourth proportional to 373,920.88, 560,547.84 and 137,208.64 is: 205,690.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,920.88 : 560,547.84 = 137,208.64 : x
  2. Step 2: Convert to fraction form
    373,920.88/560,547.84 = 137,208.64/x
  3. Step 3: Cross multiply
    373,920.88x = 560,547.84 × 137,208.64
  4. Step 4: Simplify right side
    373,920.88x = 76,912,006,781.34
  5. Step 5: Solve for x
    x = 76,912,006,781.34/373,920.88
  6. Step 6: Final answer
    x = 205,690.59

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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.