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Finding the Fourth Proportional to 235,597.96, 325,121.82 and 128,168.92

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Solution

The fourth proportional to 235,597.96, 325,121.82 and 128,168.92 is: 176,871.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,597.96 : 325,121.82 = 128,168.92 : x
  2. Step 2: Convert to fraction form
    235,597.96/325,121.82 = 128,168.92/x
  3. Step 3: Cross multiply
    235,597.96x = 325,121.82 × 128,168.92
  4. Step 4: Simplify right side
    235,597.96x = 41,670,512,537.83
  5. Step 5: Solve for x
    x = 41,670,512,537.83/235,597.96
  6. Step 6: Final answer
    x = 176,871.28

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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.