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Finding the Fourth Proportional to 123,503.41, 185,211.24 and 53,344.45

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Solution

The fourth proportional to 123,503.41, 185,211.24 and 53,344.45 is: 79,997.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,503.41 : 185,211.24 = 53,344.45 : x
  2. Step 2: Convert to fraction form
    123,503.41/185,211.24 = 53,344.45/x
  3. Step 3: Cross multiply
    123,503.41x = 185,211.24 × 53,344.45
  4. Step 4: Simplify right side
    123,503.41x = 9,879,991,731.62
  5. Step 5: Solve for x
    x = 9,879,991,731.62/123,503.41
  6. Step 6: Final answer
    x = 79,997.72

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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.