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Finding the Fourth Proportional to 302,456.40, 453,684.60 and 136,568.40

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Solution

The fourth proportional to 302,456.40, 453,684.60 and 136,568.40 is: 204,852.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,456.40 : 453,684.60 = 136,568.40 : x
  2. Step 2: Convert to fraction form
    302,456.40/453,684.60 = 136,568.40/x
  3. Step 3: Cross multiply
    302,456.40x = 453,684.60 × 136,568.40
  4. Step 4: Simplify right side
    302,456.40x = 61,958,979,926.64
  5. Step 5: Solve for x
    x = 61,958,979,926.64/302,456.40
  6. Step 6: Final answer
    x = 204,852.60

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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.