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Finding the Fourth Proportional to 393,536.98, 590,498.20 and 168,830.93

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Solution

The fourth proportional to 393,536.98, 590,498.20 and 168,830.93 is: 253,329.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,536.98 : 590,498.20 = 168,830.93 : x
  2. Step 2: Convert to fraction form
    393,536.98/590,498.20 = 168,830.93/x
  3. Step 3: Cross multiply
    393,536.98x = 590,498.20 × 168,830.93
  4. Step 4: Simplify right side
    393,536.98x = 99,694,361,956.61
  5. Step 5: Solve for x
    x = 99,694,361,956.61/393,536.98
  6. Step 6: Final answer
    x = 253,329.08

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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.