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Finding the Fourth Proportional to 122,014.60, 183,021.90 and 120,848.20

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Solution

The fourth proportional to 122,014.60, 183,021.90 and 120,848.20 is: 181,272.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,014.60 : 183,021.90 = 120,848.20 : x
  2. Step 2: Convert to fraction form
    122,014.60/183,021.90 = 120,848.20/x
  3. Step 3: Cross multiply
    122,014.60x = 183,021.90 × 120,848.20
  4. Step 4: Simplify right side
    122,014.60x = 22,117,867,175.58
  5. Step 5: Solve for x
    x = 22,117,867,175.58/122,014.60
  6. Step 6: Final answer
    x = 181,272.30

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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.