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Finding the Fourth Proportional to 113,099.60, 169,843.80 and 80,051.60

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Solution

The fourth proportional to 113,099.60, 169,843.80 and 80,051.60 is: 120,215.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,099.60 : 169,843.80 = 80,051.60 : x
  2. Step 2: Convert to fraction form
    113,099.60/169,843.80 = 80,051.60/x
  3. Step 3: Cross multiply
    113,099.60x = 169,843.80 × 80,051.60
  4. Step 4: Simplify right side
    113,099.60x = 13,596,267,940.08
  5. Step 5: Solve for x
    x = 13,596,267,940.08/113,099.60
  6. Step 6: Final answer
    x = 120,215.00

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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.