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Finding the Fourth Proportional to 395,700.12, 546,054.30 and 225,901.08

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Solution

The fourth proportional to 395,700.12, 546,054.30 and 225,901.08 is: 311,736.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,700.12 : 546,054.30 = 225,901.08 : x
  2. Step 2: Convert to fraction form
    395,700.12/546,054.30 = 225,901.08/x
  3. Step 3: Cross multiply
    395,700.12x = 546,054.30 × 225,901.08
  4. Step 4: Simplify right side
    395,700.12x = 123,354,256,108.64
  5. Step 5: Solve for x
    x = 123,354,256,108.64/395,700.12
  6. Step 6: Final answer
    x = 311,736.72

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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.