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Finding the Fourth Proportional to 196,992,045.20, 276,242,359.60 and 196,992,045.20

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Solution

The fourth proportional to 196,992,045.20, 276,242,359.60 and 196,992,045.20 is: 276,242,359.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,992,045.20 : 276,242,359.60 = 196,992,045.20 : x
  2. Step 2: Convert to fraction form
    196,992,045.20/276,242,359.60 = 196,992,045.20/x
  3. Step 3: Cross multiply
    196,992,045.20x = 276,242,359.60 × 196,992,045.20
  4. Step 4: Simplify right side
    196,992,045.20x = 54,417,547,388,477,856
  5. Step 5: Solve for x
    x = 54,417,547,388,477,856/196,992,045.20
  6. Step 6: Final answer
    x = 276,242,359.60

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.