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Finding the Fourth Proportional to 248,351,526.80, 347,238,641.20 and 248,351,526.80

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Solution

The fourth proportional to 248,351,526.80, 347,238,641.20 and 248,351,526.80 is: 347,238,641.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,351,526.80 : 347,238,641.20 = 248,351,526.80 : x
  2. Step 2: Convert to fraction form
    248,351,526.80/347,238,641.20 = 248,351,526.80/x
  3. Step 3: Cross multiply
    248,351,526.80x = 347,238,641.20 × 248,351,526.80
  4. Step 4: Simplify right side
    248,351,526.80x = 86,237,246,705,977,392
  5. Step 5: Solve for x
    x = 86,237,246,705,977,392/248,351,526.80
  6. Step 6: Final answer
    x = 347,238,641.20

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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.