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Finding the Fourth Proportional to 168,191,969.60, 252,287,954.40 and 168,191,969.60

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Solution

The fourth proportional to 168,191,969.60, 252,287,954.40 and 168,191,969.60 is: 252,287,954.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,191,969.60 : 252,287,954.40 = 168,191,969.60 : x
  2. Step 2: Convert to fraction form
    168,191,969.60/252,287,954.40 = 168,191,969.60/x
  3. Step 3: Cross multiply
    168,191,969.60x = 252,287,954.40 × 168,191,969.60
  4. Step 4: Simplify right side
    168,191,969.60x = 42,432,807,956,890,984
  5. Step 5: Solve for x
    x = 42,432,807,956,890,984/168,191,969.60
  6. Step 6: Final answer
    x = 252,287,954.40

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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.