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Finding the Fourth Proportional to 123,912,661.60, 185,868,992.40 and 110,520,348.40

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Solution

The fourth proportional to 123,912,661.60, 185,868,992.40 and 110,520,348.40 is: 165,780,522.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,912,661.60 : 185,868,992.40 = 110,520,348.40 : x
  2. Step 2: Convert to fraction form
    123,912,661.60/185,868,992.40 = 110,520,348.40/x
  3. Step 3: Cross multiply
    123,912,661.60x = 185,868,992.40 × 110,520,348.40
  4. Step 4: Simplify right side
    123,912,661.60x = 20,542,305,796,804,952
  5. Step 5: Solve for x
    x = 20,542,305,796,804,952/123,912,661.60
  6. Step 6: Final answer
    x = 165,780,522.60

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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.