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Finding the Fourth Proportional to 127,226.60, 190,912.80 and 48,397.40

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Solution

The fourth proportional to 127,226.60, 190,912.80 and 48,397.40 is: 72,623.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,226.60 : 190,912.80 = 48,397.40 : x
  2. Step 2: Convert to fraction form
    127,226.60/190,912.80 = 48,397.40/x
  3. Step 3: Cross multiply
    127,226.60x = 190,912.80 × 48,397.40
  4. Step 4: Simplify right side
    127,226.60x = 9,239,683,146.72
  5. Step 5: Solve for x
    x = 9,239,683,146.72/127,226.60
  6. Step 6: Final answer
    x = 72,623.83

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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.