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Finding the Fourth Proportional to 248,774.20, 373,315.20 and 130,530.40

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Solution

The fourth proportional to 248,774.20, 373,315.20 and 130,530.40 is: 195,876.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,774.20 : 373,315.20 = 130,530.40 : x
  2. Step 2: Convert to fraction form
    248,774.20/373,315.20 = 130,530.40/x
  3. Step 3: Cross multiply
    248,774.20x = 373,315.20 × 130,530.40
  4. Step 4: Simplify right side
    248,774.20x = 48,728,982,382.08
  5. Step 5: Solve for x
    x = 48,728,982,382.08/248,774.20
  6. Step 6: Final answer
    x = 195,876.35

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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.