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Finding the Fourth Proportional to 235,941.52, 325,588.07 and 128,511.04

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Solution

The fourth proportional to 235,941.52, 325,588.07 and 128,511.04 is: 177,339.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,941.52 : 325,588.07 = 128,511.04 : x
  2. Step 2: Convert to fraction form
    235,941.52/325,588.07 = 128,511.04/x
  3. Step 3: Cross multiply
    235,941.52x = 325,588.07 × 128,511.04
  4. Step 4: Simplify right side
    235,941.52x = 41,841,661,487.29
  5. Step 5: Solve for x
    x = 41,841,661,487.29/235,941.52
  6. Step 6: Final answer
    x = 177,339.12

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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.