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Finding the Fourth Proportional to 260,682.45, 391,030.47 and 83,189.22

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Solution

The fourth proportional to 260,682.45, 391,030.47 and 83,189.22 is: 124,786.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,682.45 : 391,030.47 = 83,189.22 : x
  2. Step 2: Convert to fraction form
    260,682.45/391,030.47 = 83,189.22/x
  3. Step 3: Cross multiply
    260,682.45x = 391,030.47 × 83,189.22
  4. Step 4: Simplify right side
    260,682.45x = 32,529,519,795.53
  5. Step 5: Solve for x
    x = 32,529,519,795.53/260,682.45
  6. Step 6: Final answer
    x = 124,786.00

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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.