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Finding the Fourth Proportional to 265,839.72, 366,857.40 and 144,978.84

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Solution

The fourth proportional to 265,839.72, 366,857.40 and 144,978.84 is: 200,070.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,839.72 : 366,857.40 = 144,978.84 : x
  2. Step 2: Convert to fraction form
    265,839.72/366,857.40 = 144,978.84/x
  3. Step 3: Cross multiply
    265,839.72x = 366,857.40 × 144,978.84
  4. Step 4: Simplify right side
    265,839.72x = 53,186,560,297.42
  5. Step 5: Solve for x
    x = 53,186,560,297.42/265,839.72
  6. Step 6: Final answer
    x = 200,070.03

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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.