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Finding the Fourth Proportional to 206,307,047.80, 309,460,571.70 and 206,307,047.80

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Solution

The fourth proportional to 206,307,047.80, 309,460,571.70 and 206,307,047.80 is: 309,460,571.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,307,047.80 : 309,460,571.70 = 206,307,047.80 : x
  2. Step 2: Convert to fraction form
    206,307,047.80/309,460,571.70 = 206,307,047.80/x
  3. Step 3: Cross multiply
    206,307,047.80x = 309,460,571.70 × 206,307,047.80
  4. Step 4: Simplify right side
    206,307,047.80x = 63,843,896,957,927,232
  5. Step 5: Solve for x
    x = 63,843,896,957,927,232/206,307,047.80
  6. Step 6: Final answer
    x = 309,460,571.70

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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.