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Finding the Fourth Proportional to 235,651.88, 325,198.10 and 128,222.34

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Solution

The fourth proportional to 235,651.88, 325,198.10 and 128,222.34 is: 176,946.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,651.88 : 325,198.10 = 128,222.34 : x
  2. Step 2: Convert to fraction form
    235,651.88/325,198.10 = 128,222.34/x
  3. Step 3: Cross multiply
    235,651.88x = 325,198.10 × 128,222.34
  4. Step 4: Simplify right side
    235,651.88x = 41,697,661,345.55
  5. Step 5: Solve for x
    x = 41,697,661,345.55/235,651.88
  6. Step 6: Final answer
    x = 176,946.02

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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.