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Finding the Fourth Proportional to 202,756.50, 304,135.29 and 55,012.50

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Solution

The fourth proportional to 202,756.50, 304,135.29 and 55,012.50 is: 82,518.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,756.50 : 304,135.29 = 55,012.50 : x
  2. Step 2: Convert to fraction form
    202,756.50/304,135.29 = 55,012.50/x
  3. Step 3: Cross multiply
    202,756.50x = 304,135.29 × 55,012.50
  4. Step 4: Simplify right side
    202,756.50x = 16,731,242,641.13
  5. Step 5: Solve for x
    x = 16,731,242,641.13/202,756.50
  6. Step 6: Final answer
    x = 82,518.90

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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.