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Finding the Fourth Proportional to 236,393.58, 326,216.66 and 128,963.58

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Solution

The fourth proportional to 236,393.58, 326,216.66 and 128,963.58 is: 177,966.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,393.58 : 326,216.66 = 128,963.58 : x
  2. Step 2: Convert to fraction form
    236,393.58/326,216.66 = 128,963.58/x
  3. Step 3: Cross multiply
    236,393.58x = 326,216.66 × 128,963.58
  4. Step 4: Simplify right side
    236,393.58x = 42,070,068,329.24
  5. Step 5: Solve for x
    x = 42,070,068,329.24/236,393.58
  6. Step 6: Final answer
    x = 177,966.21

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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.