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Finding the Fourth Proportional to 403,008.58, 604,384.08 and 133,086.43

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Solution

The fourth proportional to 403,008.58, 604,384.08 and 133,086.43 is: 199,587.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,008.58 : 604,384.08 = 133,086.43 : x
  2. Step 2: Convert to fraction form
    403,008.58/604,384.08 = 133,086.43/x
  3. Step 3: Cross multiply
    403,008.58x = 604,384.08 × 133,086.43
  4. Step 4: Simplify right side
    403,008.58x = 80,435,319,556.03
  5. Step 5: Solve for x
    x = 80,435,319,556.03/403,008.58
  6. Step 6: Final answer
    x = 199,587.11

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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.