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Finding the Fourth Proportional to 235,897.52, 325,544.38 and 128,473.38

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Solution

The fourth proportional to 235,897.52, 325,544.38 and 128,473.38 is: 177,296.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,897.52 : 325,544.38 = 128,473.38 : x
  2. Step 2: Convert to fraction form
    235,897.52/325,544.38 = 128,473.38/x
  3. Step 3: Cross multiply
    235,897.52x = 325,544.38 × 128,473.38
  4. Step 4: Simplify right side
    235,897.52x = 41,823,786,838.60
  5. Step 5: Solve for x
    x = 41,823,786,838.60/235,897.52
  6. Step 6: Final answer
    x = 177,296.42

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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.