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Finding the Fourth Proportional to 120,530.91, 180,830.22 and 44,628.31

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Solution

The fourth proportional to 120,530.91, 180,830.22 and 44,628.31 is: 66,955.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,530.91 : 180,830.22 = 44,628.31 : x
  2. Step 2: Convert to fraction form
    120,530.91/180,830.22 = 44,628.31/x
  3. Step 3: Cross multiply
    120,530.91x = 180,830.22 × 44,628.31
  4. Step 4: Simplify right side
    120,530.91x = 8,070,147,425.24
  5. Step 5: Solve for x
    x = 8,070,147,425.24/120,530.91
  6. Step 6: Final answer
    x = 66,955.00

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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.