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Finding the Fourth Proportional to 243,969.36, 336,647.50 and 136,512.33

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Solution

The fourth proportional to 243,969.36, 336,647.50 and 136,512.33 is: 188,370.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,969.36 : 336,647.50 = 136,512.33 : x
  2. Step 2: Convert to fraction form
    243,969.36/336,647.50 = 136,512.33/x
  3. Step 3: Cross multiply
    243,969.36x = 336,647.50 × 136,512.33
  4. Step 4: Simplify right side
    243,969.36x = 45,956,534,613.68
  5. Step 5: Solve for x
    x = 45,956,534,613.68/243,969.36
  6. Step 6: Final answer
    x = 188,370.11

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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.