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Finding the Fourth Proportional to 235,444.76, 324,912.09 and 128,014.86

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Solution

The fourth proportional to 235,444.76, 324,912.09 and 128,014.86 is: 176,659.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,444.76 : 324,912.09 = 128,014.86 : x
  2. Step 2: Convert to fraction form
    235,444.76/324,912.09 = 128,014.86/x
  3. Step 3: Cross multiply
    235,444.76x = 324,912.09 × 128,014.86
  4. Step 4: Simplify right side
    235,444.76x = 41,593,577,412.13
  5. Step 5: Solve for x
    x = 41,593,577,412.13/235,444.76
  6. Step 6: Final answer
    x = 176,659.60

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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.