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Finding the Fourth Proportional to 143,640,053.10, 201,606,257.70 and 143,640,053.10

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Solution

The fourth proportional to 143,640,053.10, 201,606,257.70 and 143,640,053.10 is: 201,606,257.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,640,053.10 : 201,606,257.70 = 143,640,053.10 : x
  2. Step 2: Convert to fraction form
    143,640,053.10/201,606,257.70 = 143,640,053.10/x
  3. Step 3: Cross multiply
    143,640,053.10x = 201,606,257.70 × 143,640,053.10
  4. Step 4: Simplify right side
    143,640,053.10x = 28,958,733,561,320,280
  5. Step 5: Solve for x
    x = 28,958,733,561,320,280/143,640,053.10
  6. Step 6: Final answer
    x = 201,606,257.70

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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.