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Finding the Fourth Proportional to 209,952,215.70, 314,928,323.55 and 195,603,308.70

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Solution

The fourth proportional to 209,952,215.70, 314,928,323.55 and 195,603,308.70 is: 293,404,963.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,952,215.70 : 314,928,323.55 = 195,603,308.70 : x
  2. Step 2: Convert to fraction form
    209,952,215.70/314,928,323.55 = 195,603,308.70/x
  3. Step 3: Cross multiply
    209,952,215.70x = 314,928,323.55 × 195,603,308.70
  4. Step 4: Simplify right side
    209,952,215.70x = 61,601,022,089,724,128
  5. Step 5: Solve for x
    x = 61,601,022,089,724,128/209,952,215.70
  6. Step 6: Final answer
    x = 293,404,963.05

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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.