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Finding the Fourth Proportional to 69,571,837.60, 104,357,756.40 and 43,705,751.20

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Solution

The fourth proportional to 69,571,837.60, 104,357,756.40 and 43,705,751.20 is: 65,558,626.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,571,837.60 : 104,357,756.40 = 43,705,751.20 : x
  2. Step 2: Convert to fraction form
    69,571,837.60/104,357,756.40 = 43,705,751.20/x
  3. Step 3: Cross multiply
    69,571,837.60x = 104,357,756.40 × 43,705,751.20
  4. Step 4: Simplify right side
    69,571,837.60x = 4,561,034,137,008,608
  5. Step 5: Solve for x
    x = 4,561,034,137,008,608/69,571,837.60
  6. Step 6: Final answer
    x = 65,558,626.80

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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.