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Finding the Fourth Proportional to 252,768.99, 348,818.31 and 145,339.45

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Solution

The fourth proportional to 252,768.99, 348,818.31 and 145,339.45 is: 200,566.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,768.99 : 348,818.31 = 145,339.45 : x
  2. Step 2: Convert to fraction form
    252,768.99/348,818.31 = 145,339.45/x
  3. Step 3: Cross multiply
    252,768.99x = 348,818.31 × 145,339.45
  4. Step 4: Simplify right side
    252,768.99x = 50,697,061,325.33
  5. Step 5: Solve for x
    x = 50,697,061,325.33/252,768.99
  6. Step 6: Final answer
    x = 200,566.78

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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.