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Finding the Fourth Proportional to 166,640,428.70, 232,722,643.90 and 166,640,428.70

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Solution

The fourth proportional to 166,640,428.70, 232,722,643.90 and 166,640,428.70 is: 232,722,643.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,640,428.70 : 232,722,643.90 = 166,640,428.70 : x
  2. Step 2: Convert to fraction form
    166,640,428.70/232,722,643.90 = 166,640,428.70/x
  3. Step 3: Cross multiply
    166,640,428.70x = 232,722,643.90 × 166,640,428.70
  4. Step 4: Simplify right side
    166,640,428.70x = 38,781,001,147,693,440
  5. Step 5: Solve for x
    x = 38,781,001,147,693,440/166,640,428.70
  6. Step 6: Final answer
    x = 232,722,643.90

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.