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Finding the Fourth Proportional to 353,408.80, 529,935.72 and 163,706.08

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Solution

The fourth proportional to 353,408.80, 529,935.72 and 163,706.08 is: 245,476.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,408.80 : 529,935.72 = 163,706.08 : x
  2. Step 2: Convert to fraction form
    353,408.80/529,935.72 = 163,706.08/x
  3. Step 3: Cross multiply
    353,408.80x = 529,935.72 × 163,706.08
  4. Step 4: Simplify right side
    353,408.80x = 86,753,699,373.18
  5. Step 5: Solve for x
    x = 86,753,699,373.18/353,408.80
  6. Step 6: Final answer
    x = 245,476.91

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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.