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Finding the Fourth Proportional to 444,471.20, 666,706.80 and 112,047.20

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Solution

The fourth proportional to 444,471.20, 666,706.80 and 112,047.20 is: 168,070.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    444,471.20 : 666,706.80 = 112,047.20 : x
  2. Step 2: Convert to fraction form
    444,471.20/666,706.80 = 112,047.20/x
  3. Step 3: Cross multiply
    444,471.20x = 666,706.80 × 112,047.20
  4. Step 4: Simplify right side
    444,471.20x = 74,702,630,160.96
  5. Step 5: Solve for x
    x = 74,702,630,160.96/444,471.20
  6. Step 6: Final answer
    x = 168,070.80

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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.