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Finding the Fourth Proportional to 235,727.61, 325,304.11 and 128,298.43

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Solution

The fourth proportional to 235,727.61, 325,304.11 and 128,298.43 is: 177,051.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,727.61 : 325,304.11 = 128,298.43 : x
  2. Step 2: Convert to fraction form
    235,727.61/325,304.11 = 128,298.43/x
  3. Step 3: Cross multiply
    235,727.61x = 325,304.11 × 128,298.43
  4. Step 4: Simplify right side
    235,727.61x = 41,736,005,932.66
  5. Step 5: Solve for x
    x = 41,736,005,932.66/235,727.61
  6. Step 6: Final answer
    x = 177,051.83

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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.