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Finding the Fourth Proportional to 354,518.44, 531,777.66 and 105,200.44

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Solution

The fourth proportional to 354,518.44, 531,777.66 and 105,200.44 is: 157,800.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,518.44 : 531,777.66 = 105,200.44 : x
  2. Step 2: Convert to fraction form
    354,518.44/531,777.66 = 105,200.44/x
  3. Step 3: Cross multiply
    354,518.44x = 531,777.66 × 105,200.44
  4. Step 4: Simplify right side
    354,518.44x = 55,943,242,090.22
  5. Step 5: Solve for x
    x = 55,943,242,090.22/354,518.44
  6. Step 6: Final answer
    x = 157,800.66

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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.