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Finding the Fourth Proportional to 225,645,320.70, 338,467,981.05 and 225,645,320.70

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Solution

The fourth proportional to 225,645,320.70, 338,467,981.05 and 225,645,320.70 is: 338,467,981.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,645,320.70 : 338,467,981.05 = 225,645,320.70 : x
  2. Step 2: Convert to fraction form
    225,645,320.70/338,467,981.05 = 225,645,320.70/x
  3. Step 3: Cross multiply
    225,645,320.70x = 338,467,981.05 × 225,645,320.70
  4. Step 4: Simplify right side
    225,645,320.70x = 76,373,716,130,708,768
  5. Step 5: Solve for x
    x = 76,373,716,130,708,768/225,645,320.70
  6. Step 6: Final answer
    x = 338,467,981.05

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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.