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Finding the Fourth Proportional to 235,895.79, 325,533.95 and 128,467.61

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Solution

The fourth proportional to 235,895.79, 325,533.95 and 128,467.61 is: 177,284.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,895.79 : 325,533.95 = 128,467.61 : x
  2. Step 2: Convert to fraction form
    235,895.79/325,533.95 = 128,467.61/x
  3. Step 3: Cross multiply
    235,895.79x = 325,533.95 × 128,467.61
  4. Step 4: Simplify right side
    235,895.79x = 41,820,568,701.86
  5. Step 5: Solve for x
    x = 41,820,568,701.86/235,895.79
  6. Step 6: Final answer
    x = 177,284.09

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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.