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Finding the Fourth Proportional to 168,494,940.90, 252,742,411.35 and 168,494,940.90

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Solution

The fourth proportional to 168,494,940.90, 252,742,411.35 and 168,494,940.90 is: 252,742,411.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,494,940.90 : 252,742,411.35 = 168,494,940.90 : x
  2. Step 2: Convert to fraction form
    168,494,940.90/252,742,411.35 = 168,494,940.90/x
  3. Step 3: Cross multiply
    168,494,940.90x = 252,742,411.35 × 168,494,940.90
  4. Step 4: Simplify right side
    168,494,940.90x = 42,585,817,663,341,736
  5. Step 5: Solve for x
    x = 42,585,817,663,341,736/168,494,940.90
  6. Step 6: Final answer
    x = 252,742,411.35

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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.