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Finding the Fourth Proportional to 170,006,722.20, 238,462,907.40 and 170,006,722.20

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Solution

The fourth proportional to 170,006,722.20, 238,462,907.40 and 170,006,722.20 is: 238,462,907.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,006,722.20 : 238,462,907.40 = 170,006,722.20 : x
  2. Step 2: Convert to fraction form
    170,006,722.20/238,462,907.40 = 170,006,722.20/x
  3. Step 3: Cross multiply
    170,006,722.20x = 238,462,907.40 × 170,006,722.20
  4. Step 4: Simplify right side
    170,006,722.20x = 40,540,297,253,356,120
  5. Step 5: Solve for x
    x = 40,540,297,253,356,120/170,006,722.20
  6. Step 6: Final answer
    x = 238,462,907.40

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.