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Finding the Fourth Proportional to 75,803.90, 104,530.23 and 52,860.39

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Solution

The fourth proportional to 75,803.90, 104,530.23 and 52,860.39 is: 72,892.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,803.90 : 104,530.23 = 52,860.39 : x
  2. Step 2: Convert to fraction form
    75,803.90/104,530.23 = 52,860.39/x
  3. Step 3: Cross multiply
    75,803.90x = 104,530.23 × 52,860.39
  4. Step 4: Simplify right side
    75,803.90x = 5,525,508,724.59
  5. Step 5: Solve for x
    x = 5,525,508,724.59/75,803.90
  6. Step 6: Final answer
    x = 72,892.15

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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.