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Finding the Fourth Proportional to 283,905.49, 391,813.11 and 163,070.08

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Solution

The fourth proportional to 283,905.49, 391,813.11 and 163,070.08 is: 225,050.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,905.49 : 391,813.11 = 163,070.08 : x
  2. Step 2: Convert to fraction form
    283,905.49/391,813.11 = 163,070.08/x
  3. Step 3: Cross multiply
    283,905.49x = 391,813.11 × 163,070.08
  4. Step 4: Simplify right side
    283,905.49x = 63,892,995,192.75
  5. Step 5: Solve for x
    x = 63,892,995,192.75/283,905.49
  6. Step 6: Final answer
    x = 225,050.23

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.