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Finding the Fourth Proportional to 14,574,019.20, 21,861,028.80 and 14,361,442.80

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Solution

The fourth proportional to 14,574,019.20, 21,861,028.80 and 14,361,442.80 is: 21,542,164.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,574,019.20 : 21,861,028.80 = 14,361,442.80 : x
  2. Step 2: Convert to fraction form
    14,574,019.20/21,861,028.80 = 14,361,442.80/x
  3. Step 3: Cross multiply
    14,574,019.20x = 21,861,028.80 × 14,361,442.80
  4. Step 4: Simplify right side
    14,574,019.20x = 313,955,914,660,352.69
  5. Step 5: Solve for x
    x = 313,955,914,660,352.69/14,574,019.20
  6. Step 6: Final answer
    x = 21,542,164.20

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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.