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Finding the Fourth Proportional to 103,620.55, 155,430.83 and 37,062.85

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Solution

The fourth proportional to 103,620.55, 155,430.83 and 37,062.85 is: 55,594.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,620.55 : 155,430.83 = 37,062.85 : x
  2. Step 2: Convert to fraction form
    103,620.55/155,430.83 = 37,062.85/x
  3. Step 3: Cross multiply
    103,620.55x = 155,430.83 × 37,062.85
  4. Step 4: Simplify right side
    103,620.55x = 5,760,709,537.67
  5. Step 5: Solve for x
    x = 5,760,709,537.67/103,620.55
  6. Step 6: Final answer
    x = 55,594.28

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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.