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Finding the Fourth Proportional to 265,980.36, 367,051.08 and 145,121.88

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Solution

The fourth proportional to 265,980.36, 367,051.08 and 145,121.88 is: 200,267.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,980.36 : 367,051.08 = 145,121.88 : x
  2. Step 2: Convert to fraction form
    265,980.36/367,051.08 = 145,121.88/x
  3. Step 3: Cross multiply
    265,980.36x = 367,051.08 × 145,121.88
  4. Step 4: Simplify right side
    265,980.36x = 53,267,142,785.63
  5. Step 5: Solve for x
    x = 53,267,142,785.63/265,980.36
  6. Step 6: Final answer
    x = 200,267.20

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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.