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Finding the Fourth Proportional to 35,809,615.20, 53,714,422.80 and 30,938,728.80

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Solution

The fourth proportional to 35,809,615.20, 53,714,422.80 and 30,938,728.80 is: 46,408,093.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,809,615.20 : 53,714,422.80 = 30,938,728.80 : x
  2. Step 2: Convert to fraction form
    35,809,615.20/53,714,422.80 = 30,938,728.80/x
  3. Step 3: Cross multiply
    35,809,615.20x = 53,714,422.80 × 30,938,728.80
  4. Step 4: Simplify right side
    35,809,615.20x = 1,661,855,959,657,736.50
  5. Step 5: Solve for x
    x = 1,661,855,959,657,736.50/35,809,615.20
  6. Step 6: Final answer
    x = 46,408,093.20

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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.