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Finding the Fourth Proportional to 303,948.20, 456,053.50 and 163,678.88

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Solution

The fourth proportional to 303,948.20, 456,053.50 and 163,678.88 is: 245,588.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,948.20 : 456,053.50 = 163,678.88 : x
  2. Step 2: Convert to fraction form
    303,948.20/456,053.50 = 163,678.88/x
  3. Step 3: Cross multiply
    303,948.20x = 456,053.50 × 163,678.88
  4. Step 4: Simplify right side
    303,948.20x = 74,646,326,100.08
  5. Step 5: Solve for x
    x = 74,646,326,100.08/303,948.20
  6. Step 6: Final answer
    x = 245,588.97

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.