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Finding the Fourth Proportional to 393,513.66, 590,306.67 and 168,823.44

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Solution

The fourth proportional to 393,513.66, 590,306.67 and 168,823.44 is: 253,250.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,513.66 : 590,306.67 = 168,823.44 : x
  2. Step 2: Convert to fraction form
    393,513.66/590,306.67 = 168,823.44/x
  3. Step 3: Cross multiply
    393,513.66x = 590,306.67 × 168,823.44
  4. Step 4: Simplify right side
    393,513.66x = 99,657,602,684.34
  5. Step 5: Solve for x
    x = 99,657,602,684.34/393,513.66
  6. Step 6: Final answer
    x = 253,250.68

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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.