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Finding the Fourth Proportional to 112,267,279.80, 168,400,919.70 and 112,267,279.80

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Solution

The fourth proportional to 112,267,279.80, 168,400,919.70 and 112,267,279.80 is: 168,400,919.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,267,279.80 : 168,400,919.70 = 112,267,279.80 : x
  2. Step 2: Convert to fraction form
    112,267,279.80/168,400,919.70 = 112,267,279.80/x
  3. Step 3: Cross multiply
    112,267,279.80x = 168,400,919.70 × 112,267,279.80
  4. Step 4: Simplify right side
    112,267,279.80x = 18,905,913,170,537,232
  5. Step 5: Solve for x
    x = 18,905,913,170,537,232/112,267,279.80
  6. Step 6: Final answer
    x = 168,400,919.70

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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.