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Finding the Fourth Proportional to 248,875,945.20, 347,620,107.60 and 248,875,945.20

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Solution

The fourth proportional to 248,875,945.20, 347,620,107.60 and 248,875,945.20 is: 347,620,107.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,875,945.20 : 347,620,107.60 = 248,875,945.20 : x
  2. Step 2: Convert to fraction form
    248,875,945.20/347,620,107.60 = 248,875,945.20/x
  3. Step 3: Cross multiply
    248,875,945.20x = 347,620,107.60 × 248,875,945.20
  4. Step 4: Simplify right side
    248,875,945.20x = 86,514,282,849,475,712
  5. Step 5: Solve for x
    x = 86,514,282,849,475,712/248,875,945.20
  6. Step 6: Final answer
    x = 347,620,107.60

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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.