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Finding the Fourth Proportional to 143,640,055.60, 201,606,261.20 and 143,640,055.60

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Solution

The fourth proportional to 143,640,055.60, 201,606,261.20 and 143,640,055.60 is: 201,606,261.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,640,055.60 : 201,606,261.20 = 143,640,055.60 : x
  2. Step 2: Convert to fraction form
    143,640,055.60/201,606,261.20 = 143,640,055.60/x
  3. Step 3: Cross multiply
    143,640,055.60x = 201,606,261.20 × 143,640,055.60
  4. Step 4: Simplify right side
    143,640,055.60x = 28,958,734,568,076,120
  5. Step 5: Solve for x
    x = 28,958,734,568,076,120/143,640,055.60
  6. Step 6: Final answer
    x = 201,606,261.20

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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.