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Finding the Fourth Proportional to 121,379,145.60, 182,068,718.40 and 121,379,145.60

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Solution

The fourth proportional to 121,379,145.60, 182,068,718.40 and 121,379,145.60 is: 182,068,718.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,379,145.60 : 182,068,718.40 = 121,379,145.60 : x
  2. Step 2: Convert to fraction form
    121,379,145.60/182,068,718.40 = 121,379,145.60/x
  3. Step 3: Cross multiply
    121,379,145.60x = 182,068,718.40 × 121,379,145.60
  4. Step 4: Simplify right side
    121,379,145.60x = 22,099,345,479,879,000
  5. Step 5: Solve for x
    x = 22,099,345,479,879,000/121,379,145.60
  6. Step 6: Final answer
    x = 182,068,718.40

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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.