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Finding the Fourth Proportional to 103,364.51, 155,083.55 and 50,810.90

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Solution

The fourth proportional to 103,364.51, 155,083.55 and 50,810.90 is: 76,234.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,364.51 : 155,083.55 = 50,810.90 : x
  2. Step 2: Convert to fraction form
    103,364.51/155,083.55 = 50,810.90/x
  3. Step 3: Cross multiply
    103,364.51x = 155,083.55 × 50,810.90
  4. Step 4: Simplify right side
    103,364.51x = 7,879,933,721.22
  5. Step 5: Solve for x
    x = 7,879,933,721.22/103,364.51
  6. Step 6: Final answer
    x = 76,234.43

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1.5x scale

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.