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Finding the Fourth Proportional to 243,489.37, 336,014.59 and 136,059.51

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Solution

The fourth proportional to 243,489.37, 336,014.59 and 136,059.51 is: 187,761.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,489.37 : 336,014.59 = 136,059.51 : x
  2. Step 2: Convert to fraction form
    243,489.37/336,014.59 = 136,059.51/x
  3. Step 3: Cross multiply
    243,489.37x = 336,014.59 × 136,059.51
  4. Step 4: Simplify right side
    243,489.37x = 45,717,980,468.25
  5. Step 5: Solve for x
    x = 45,717,980,468.25/243,489.37
  6. Step 6: Final answer
    x = 187,761.71

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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.