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Finding the Fourth Proportional to 122,494.13, 183,741.20 and 39,388.13

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Solution

The fourth proportional to 122,494.13, 183,741.20 and 39,388.13 is: 59,082.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,494.13 : 183,741.20 = 39,388.13 : x
  2. Step 2: Convert to fraction form
    122,494.13/183,741.20 = 39,388.13/x
  3. Step 3: Cross multiply
    122,494.13x = 183,741.20 × 39,388.13
  4. Step 4: Simplify right side
    122,494.13x = 7,237,221,156.31
  5. Step 5: Solve for x
    x = 7,237,221,156.31/122,494.13
  6. Step 6: Final answer
    x = 59,082.19

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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.