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Finding the Fourth Proportional to 245,020,885.30, 343,284,331.10 and 245,020,885.30

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Solution

The fourth proportional to 245,020,885.30, 343,284,331.10 and 245,020,885.30 is: 343,284,331.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,020,885.30 : 343,284,331.10 = 245,020,885.30 : x
  2. Step 2: Convert to fraction form
    245,020,885.30/343,284,331.10 = 245,020,885.30/x
  3. Step 3: Cross multiply
    245,020,885.30x = 343,284,331.10 × 245,020,885.30
  4. Step 4: Simplify right side
    245,020,885.30x = 84,111,830,715,740,336
  5. Step 5: Solve for x
    x = 84,111,830,715,740,336/245,020,885.30
  6. Step 6: Final answer
    x = 343,284,331.10

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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.