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Finding the Fourth Proportional to 253,254.96, 379,693.80 and 84,675.48

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Solution

The fourth proportional to 253,254.96, 379,693.80 and 84,675.48 is: 126,950.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,254.96 : 379,693.80 = 84,675.48 : x
  2. Step 2: Convert to fraction form
    253,254.96/379,693.80 = 84,675.48/x
  3. Step 3: Cross multiply
    253,254.96x = 379,693.80 × 84,675.48
  4. Step 4: Simplify right side
    253,254.96x = 32,150,754,768.02
  5. Step 5: Solve for x
    x = 32,150,754,768.02/253,254.96
  6. Step 6: Final answer
    x = 126,950.15

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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.