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Finding the Fourth Proportional to 536,910.96, 805,347.80 and 137,555.70

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Solution

The fourth proportional to 536,910.96, 805,347.80 and 137,555.70 is: 206,328.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,910.96 : 805,347.80 = 137,555.70 : x
  2. Step 2: Convert to fraction form
    536,910.96/805,347.80 = 137,555.70/x
  3. Step 3: Cross multiply
    536,910.96x = 805,347.80 × 137,555.70
  4. Step 4: Simplify right side
    536,910.96x = 110,780,180,372.46
  5. Step 5: Solve for x
    x = 110,780,180,372.46/536,910.96
  6. Step 6: Final answer
    x = 206,328.77

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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.