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Finding the Fourth Proportional to 248,872.30, 373,308.45 and 209,992.30

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Solution

The fourth proportional to 248,872.30, 373,308.45 and 209,992.30 is: 314,988.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,872.30 : 373,308.45 = 209,992.30 : x
  2. Step 2: Convert to fraction form
    248,872.30/373,308.45 = 209,992.30/x
  3. Step 3: Cross multiply
    248,872.30x = 373,308.45 × 209,992.30
  4. Step 4: Simplify right side
    248,872.30x = 78,391,900,024.94
  5. Step 5: Solve for x
    x = 78,391,900,024.94/248,872.30
  6. Step 6: Final answer
    x = 314,988.45

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1.5x scale

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.