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Finding the Fourth Proportional to 248,847, 343,417.50 and 141,421.56

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Solution

The fourth proportional to 248,847, 343,417.50 and 141,421.56 is: 195,166.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,847 : 343,417.50 = 141,421.56 : x
  2. Step 2: Convert to fraction form
    248,847/343,417.50 = 141,421.56/x
  3. Step 3: Cross multiply
    248,847x = 343,417.50 × 141,421.56
  4. Step 4: Simplify right side
    248,847x = 48,566,638,581.30
  5. Step 5: Solve for x
    x = 48,566,638,581.30/248,847
  6. Step 6: Final answer
    x = 195,166.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.