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Finding the Fourth Proportional to 236,894.52, 326,915.28 and 129,464.52

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Solution

The fourth proportional to 236,894.52, 326,915.28 and 129,464.52 is: 178,661.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,894.52 : 326,915.28 = 129,464.52 : x
  2. Step 2: Convert to fraction form
    236,894.52/326,915.28 = 129,464.52/x
  3. Step 3: Cross multiply
    236,894.52x = 326,915.28 × 129,464.52
  4. Step 4: Simplify right side
    236,894.52x = 42,323,929,805.87
  5. Step 5: Solve for x
    x = 42,323,929,805.87/236,894.52
  6. Step 6: Final answer
    x = 178,661.50

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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.