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Finding the Fourth Proportional to 65,254,860.14, 97,669,382.96 and 47,978,480.30

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Solution

The fourth proportional to 65,254,860.14, 97,669,382.96 and 47,978,480.30 is: 71,811,180.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,254,860.14 : 97,669,382.96 = 47,978,480.30 : x
  2. Step 2: Convert to fraction form
    65,254,860.14/97,669,382.96 = 47,978,480.30/x
  3. Step 3: Cross multiply
    65,254,860.14x = 97,669,382.96 × 47,978,480.30
  4. Step 4: Simplify right side
    65,254,860.14x = 4,686,028,566,259,515
  5. Step 5: Solve for x
    x = 4,686,028,566,259,515/65,254,860.14
  6. Step 6: Final answer
    x = 71,811,180.90

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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.