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Finding the Fourth Proportional to 350,640,715.20, 525,961,072.80 and 159,164,491.20

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Solution

The fourth proportional to 350,640,715.20, 525,961,072.80 and 159,164,491.20 is: 238,746,736.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    350,640,715.20 : 525,961,072.80 = 159,164,491.20 : x
  2. Step 2: Convert to fraction form
    350,640,715.20/525,961,072.80 = 159,164,491.20/x
  3. Step 3: Cross multiply
    350,640,715.20x = 525,961,072.80 × 159,164,491.20
  4. Step 4: Simplify right side
    350,640,715.20x = 83,714,326,543,218,160
  5. Step 5: Solve for x
    x = 83,714,326,543,218,160/350,640,715.20
  6. Step 6: Final answer
    x = 238,746,736.80

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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.