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Finding the Fourth Proportional to 73,613,999.80, 110,420,999.70 and 25,146,580.60

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Solution

The fourth proportional to 73,613,999.80, 110,420,999.70 and 25,146,580.60 is: 37,719,870.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,613,999.80 : 110,420,999.70 = 25,146,580.60 : x
  2. Step 2: Convert to fraction form
    73,613,999.80/110,420,999.70 = 25,146,580.60/x
  3. Step 3: Cross multiply
    73,613,999.80x = 110,420,999.70 × 25,146,580.60
  4. Step 4: Simplify right side
    73,613,999.80x = 2,776,710,568,888,626
  5. Step 5: Solve for x
    x = 2,776,710,568,888,626/73,613,999.80
  6. Step 6: Final answer
    x = 37,719,870.90

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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.