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Finding the Fourth Proportional to 235,420.20, 352,823.10 and 109,045.80

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Solution

The fourth proportional to 235,420.20, 352,823.10 and 109,045.80 is: 163,426.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,420.20 : 352,823.10 = 109,045.80 : x
  2. Step 2: Convert to fraction form
    235,420.20/352,823.10 = 109,045.80/x
  3. Step 3: Cross multiply
    235,420.20x = 352,823.10 × 109,045.80
  4. Step 4: Simplify right side
    235,420.20x = 38,473,877,197.98
  5. Step 5: Solve for x
    x = 38,473,877,197.98/235,420.20
  6. Step 6: Final answer
    x = 163,426.41

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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.