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Finding the Fourth Proportional to 33,453,038.40, 50,179,557.60 and 20,698,454.40

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Solution

The fourth proportional to 33,453,038.40, 50,179,557.60 and 20,698,454.40 is: 31,047,681.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,453,038.40 : 50,179,557.60 = 20,698,454.40 : x
  2. Step 2: Convert to fraction form
    33,453,038.40/50,179,557.60 = 20,698,454.40/x
  3. Step 3: Cross multiply
    33,453,038.40x = 50,179,557.60 × 20,698,454.40
  4. Step 4: Simplify right side
    33,453,038.40x = 1,038,639,284,795,773.38
  5. Step 5: Solve for x
    x = 1,038,639,284,795,773.38/33,453,038.40
  6. Step 6: Final answer
    x = 31,047,681.60

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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.