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Finding the Fourth Proportional to 75,813.84, 104,621.94 and 43,988.22

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Solution

The fourth proportional to 75,813.84, 104,621.94 and 43,988.22 is: 60,703.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,813.84 : 104,621.94 = 43,988.22 : x
  2. Step 2: Convert to fraction form
    75,813.84/104,621.94 = 43,988.22/x
  3. Step 3: Cross multiply
    75,813.84x = 104,621.94 × 43,988.22
  4. Step 4: Simplify right side
    75,813.84x = 4,602,132,913.55
  5. Step 5: Solve for x
    x = 4,602,132,913.55/75,813.84
  6. Step 6: Final answer
    x = 60,703.07

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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.