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Finding the Fourth Proportional to 568,630,680.80, 852,946,014.80 and 137,809,176.80

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Solution

The fourth proportional to 568,630,680.80, 852,946,014.80 and 137,809,176.80 is: 206,713,763.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,630,680.80 : 852,946,014.80 = 137,809,176.80 : x
  2. Step 2: Convert to fraction form
    568,630,680.80/852,946,014.80 = 137,809,176.80/x
  3. Step 3: Cross multiply
    568,630,680.80x = 852,946,014.80 × 137,809,176.80
  4. Step 4: Simplify right side
    568,630,680.80x = 117,543,788,154,428,624
  5. Step 5: Solve for x
    x = 117,543,788,154,428,624/568,630,680.80
  6. Step 6: Final answer
    x = 206,713,763.65

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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.