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Finding the Fourth Proportional to 248,865.40, 373,298.10 and 82,653.40

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Solution

The fourth proportional to 248,865.40, 373,298.10 and 82,653.40 is: 123,980.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,865.40 : 373,298.10 = 82,653.40 : x
  2. Step 2: Convert to fraction form
    248,865.40/373,298.10 = 82,653.40/x
  3. Step 3: Cross multiply
    248,865.40x = 373,298.10 × 82,653.40
  4. Step 4: Simplify right side
    248,865.40x = 30,854,357,178.54
  5. Step 5: Solve for x
    x = 30,854,357,178.54/248,865.40
  6. Step 6: Final answer
    x = 123,980.10

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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.