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Finding the Fourth Proportional to 122,090.77, 183,129.06 and 36,699.78

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Solution

The fourth proportional to 122,090.77, 183,129.06 and 36,699.78 is: 55,047.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,090.77 : 183,129.06 = 36,699.78 : x
  2. Step 2: Convert to fraction form
    122,090.77/183,129.06 = 36,699.78/x
  3. Step 3: Cross multiply
    122,090.77x = 183,129.06 × 36,699.78
  4. Step 4: Simplify right side
    122,090.77x = 6,720,797,037.96
  5. Step 5: Solve for x
    x = 6,720,797,037.96/122,090.77
  6. Step 6: Final answer
    x = 55,047.54

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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.