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Finding the Fourth Proportional to 112,330,908.20, 157,716,767.80 and 112,330,908.20

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Solution

The fourth proportional to 112,330,908.20, 157,716,767.80 and 112,330,908.20 is: 157,716,767.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,330,908.20 : 157,716,767.80 = 112,330,908.20 : x
  2. Step 2: Convert to fraction form
    112,330,908.20/157,716,767.80 = 112,330,908.20/x
  3. Step 3: Cross multiply
    112,330,908.20x = 157,716,767.80 × 112,330,908.20
  4. Step 4: Simplify right side
    112,330,908.20x = 17,716,467,765,342,518
  5. Step 5: Solve for x
    x = 17,716,467,765,342,518/112,330,908.20
  6. Step 6: Final answer
    x = 157,716,767.80

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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.