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Finding the Fourth Proportional to 382,987.08, 574,743.06 and 133,669.08

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Solution

The fourth proportional to 382,987.08, 574,743.06 and 133,669.08 is: 200,595.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,987.08 : 574,743.06 = 133,669.08 : x
  2. Step 2: Convert to fraction form
    382,987.08/574,743.06 = 133,669.08/x
  3. Step 3: Cross multiply
    382,987.08x = 574,743.06 × 133,669.08
  4. Step 4: Simplify right side
    382,987.08x = 76,825,376,066.58
  5. Step 5: Solve for x
    x = 76,825,376,066.58/382,987.08
  6. Step 6: Final answer
    x = 200,595.22

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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.