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Finding the Fourth Proportional to 489,888,014.80, 734,832,022.20 and 166,771,886.80

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Solution

The fourth proportional to 489,888,014.80, 734,832,022.20 and 166,771,886.80 is: 250,157,830.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,888,014.80 : 734,832,022.20 = 166,771,886.80 : x
  2. Step 2: Convert to fraction form
    489,888,014.80/734,832,022.20 = 166,771,886.80/x
  3. Step 3: Cross multiply
    489,888,014.80x = 734,832,022.20 × 166,771,886.80
  4. Step 4: Simplify right side
    489,888,014.80x = 122,549,322,823,353,504
  5. Step 5: Solve for x
    x = 122,549,322,823,353,504/489,888,014.80
  6. Step 6: Final answer
    x = 250,157,830.20

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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.