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Finding the Fourth Proportional to 2,148,361.02, 2,964,679.02 and 1,181,491.20

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Solution

The fourth proportional to 2,148,361.02, 2,964,679.02 and 1,181,491.20 is: 1,630,425.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,148,361.02 : 2,964,679.02 = 1,181,491.20 : x
  2. Step 2: Convert to fraction form
    2,148,361.02/2,964,679.02 = 1,181,491.20/x
  3. Step 3: Cross multiply
    2,148,361.02x = 2,964,679.02 × 1,181,491.20
  4. Step 4: Simplify right side
    2,148,361.02x = 3,502,742,172,954.62
  5. Step 5: Solve for x
    x = 3,502,742,172,954.62/2,148,361.02
  6. Step 6: Final answer
    x = 1,630,425.31

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.