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Finding the Fourth Proportional to 46,138,575.80, 69,207,863.70 and 46,138,575.80

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Solution

The fourth proportional to 46,138,575.80, 69,207,863.70 and 46,138,575.80 is: 69,207,863.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,138,575.80 : 69,207,863.70 = 46,138,575.80 : x
  2. Step 2: Convert to fraction form
    46,138,575.80/69,207,863.70 = 46,138,575.80/x
  3. Step 3: Cross multiply
    46,138,575.80x = 69,207,863.70 × 46,138,575.80
  4. Step 4: Simplify right side
    46,138,575.80x = 3,193,152,265,278,518.50
  5. Step 5: Solve for x
    x = 3,193,152,265,278,518.50/46,138,575.80
  6. Step 6: Final answer
    x = 69,207,863.70

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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.