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Finding the Fourth Proportional to 211,373,080.40, 317,059,620.60 and 211,373,080.40

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Solution

The fourth proportional to 211,373,080.40, 317,059,620.60 and 211,373,080.40 is: 317,059,620.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,373,080.40 : 317,059,620.60 = 211,373,080.40 : x
  2. Step 2: Convert to fraction form
    211,373,080.40/317,059,620.60 = 211,373,080.40/x
  3. Step 3: Cross multiply
    211,373,080.40x = 317,059,620.60 × 211,373,080.40
  4. Step 4: Simplify right side
    211,373,080.40x = 67,017,868,676,677,304
  5. Step 5: Solve for x
    x = 67,017,868,676,677,304/211,373,080.40
  6. Step 6: Final answer
    x = 317,059,620.60

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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.