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Finding the Fourth Proportional to 192,431.03, 265,567.82 and 111,858.30

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Solution

The fourth proportional to 192,431.03, 265,567.82 and 111,858.30 is: 154,372.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,431.03 : 265,567.82 = 111,858.30 : x
  2. Step 2: Convert to fraction form
    192,431.03/265,567.82 = 111,858.30/x
  3. Step 3: Cross multiply
    192,431.03x = 265,567.82 × 111,858.30
  4. Step 4: Simplify right side
    192,431.03x = 29,705,964,320.61
  5. Step 5: Solve for x
    x = 29,705,964,320.61/192,431.03
  6. Step 6: Final answer
    x = 154,372.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.