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Finding the Fourth Proportional to 73,812,999.60, 110,719,499.40 and 39,800,775.60

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Solution

The fourth proportional to 73,812,999.60, 110,719,499.40 and 39,800,775.60 is: 59,701,163.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,812,999.60 : 110,719,499.40 = 39,800,775.60 : x
  2. Step 2: Convert to fraction form
    73,812,999.60/110,719,499.40 = 39,800,775.60/x
  3. Step 3: Cross multiply
    73,812,999.60x = 110,719,499.40 × 39,800,775.60
  4. Step 4: Simplify right side
    73,812,999.60x = 4,406,721,950,163,735
  5. Step 5: Solve for x
    x = 4,406,721,950,163,735/73,812,999.60
  6. Step 6: Final answer
    x = 59,701,163.40

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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.