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Finding the Fourth Proportional to 120,425.01, 180,749.60 and 61,304.94

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Solution

The fourth proportional to 120,425.01, 180,749.60 and 61,304.94 is: 92,014.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,425.01 : 180,749.60 = 61,304.94 : x
  2. Step 2: Convert to fraction form
    120,425.01/180,749.60 = 61,304.94/x
  3. Step 3: Cross multiply
    120,425.01x = 180,749.60 × 61,304.94
  4. Step 4: Simplify right side
    120,425.01x = 11,080,843,076.50
  5. Step 5: Solve for x
    x = 11,080,843,076.50/120,425.01
  6. Step 6: Final answer
    x = 92,014.47

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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.