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Finding the Fourth Proportional to 220,442.56, 330,706.40 and 94,080.96

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Solution

The fourth proportional to 220,442.56, 330,706.40 and 94,080.96 is: 141,139.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,442.56 : 330,706.40 = 94,080.96 : x
  2. Step 2: Convert to fraction form
    220,442.56/330,706.40 = 94,080.96/x
  3. Step 3: Cross multiply
    220,442.56x = 330,706.40 × 94,080.96
  4. Step 4: Simplify right side
    220,442.56x = 31,113,175,590.14
  5. Step 5: Solve for x
    x = 31,113,175,590.14/220,442.56
  6. Step 6: Final answer
    x = 141,139.60

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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.