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Finding the Fourth Proportional to 69,688.51, 96,163.47 and 39,468.02

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Solution

The fourth proportional to 69,688.51, 96,163.47 and 39,468.02 is: 54,462.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,688.51 : 96,163.47 = 39,468.02 : x
  2. Step 2: Convert to fraction form
    69,688.51/96,163.47 = 39,468.02/x
  3. Step 3: Cross multiply
    69,688.51x = 96,163.47 × 39,468.02
  4. Step 4: Simplify right side
    69,688.51x = 3,795,381,276.41
  5. Step 5: Solve for x
    x = 3,795,381,276.41/69,688.51
  6. Step 6: Final answer
    x = 54,462.08

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.