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Finding the Fourth Proportional to 34,599,602.80, 51,863,974.80 and 20,215,266.40

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Solution

The fourth proportional to 34,599,602.80, 51,863,974.80 and 20,215,266.40 is: 30,302,199.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,599,602.80 : 51,863,974.80 = 20,215,266.40 : x
  2. Step 2: Convert to fraction form
    34,599,602.80/51,863,974.80 = 20,215,266.40/x
  3. Step 3: Cross multiply
    34,599,602.80x = 51,863,974.80 × 20,215,266.40
  4. Step 4: Simplify right side
    34,599,602.80x = 1,048,444,067,144,886.62
  5. Step 5: Solve for x
    x = 1,048,444,067,144,886.62/34,599,602.80
  6. Step 6: Final answer
    x = 30,302,199.51

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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.