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Finding the Fourth Proportional to 100,404,639.70, 150,606,959.61 and 100,404,639.70

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Solution

The fourth proportional to 100,404,639.70, 150,606,959.61 and 100,404,639.70 is: 150,606,959.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,404,639.70 : 150,606,959.61 = 100,404,639.70 : x
  2. Step 2: Convert to fraction form
    100,404,639.70/150,606,959.61 = 100,404,639.70/x
  3. Step 3: Cross multiply
    100,404,639.70x = 150,606,959.61 × 100,404,639.70
  4. Step 4: Simplify right side
    100,404,639.70x = 15,121,637,515,954,504
  5. Step 5: Solve for x
    x = 15,121,637,515,954,504/100,404,639.70
  6. Step 6: Final answer
    x = 150,606,959.61

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1.5x scale

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.