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Finding the Fourth Proportional to 366,718,611.80, 549,888,960.90 and 136,569,229.40

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Solution

The fourth proportional to 366,718,611.80, 549,888,960.90 and 136,569,229.40 is: 204,783,474.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,718,611.80 : 549,888,960.90 = 136,569,229.40 : x
  2. Step 2: Convert to fraction form
    366,718,611.80/549,888,960.90 = 136,569,229.40/x
  3. Step 3: Cross multiply
    366,718,611.80x = 549,888,960.90 × 136,569,229.40
  4. Step 4: Simplify right side
    366,718,611.80x = 75,097,911,645,679,728
  5. Step 5: Solve for x
    x = 75,097,911,645,679,728/366,718,611.80
  6. Step 6: Final answer
    x = 204,783,474.93

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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.