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Finding the Fourth Proportional to 122,404.56, 183,606.84 and 39,356.88

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Solution

The fourth proportional to 122,404.56, 183,606.84 and 39,356.88 is: 59,035.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,404.56 : 183,606.84 = 39,356.88 : x
  2. Step 2: Convert to fraction form
    122,404.56/183,606.84 = 39,356.88/x
  3. Step 3: Cross multiply
    122,404.56x = 183,606.84 × 39,356.88
  4. Step 4: Simplify right side
    122,404.56x = 7,226,192,369.06
  5. Step 5: Solve for x
    x = 7,226,192,369.06/122,404.56
  6. Step 6: Final answer
    x = 59,035.32

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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.