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Finding the Fourth Proportional to 117,035.40, 175,553.10 and 57,986.40

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Solution

The fourth proportional to 117,035.40, 175,553.10 and 57,986.40 is: 86,979.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,035.40 : 175,553.10 = 57,986.40 : x
  2. Step 2: Convert to fraction form
    117,035.40/175,553.10 = 57,986.40/x
  3. Step 3: Cross multiply
    117,035.40x = 175,553.10 × 57,986.40
  4. Step 4: Simplify right side
    117,035.40x = 10,179,692,277.84
  5. Step 5: Solve for x
    x = 10,179,692,277.84/117,035.40
  6. Step 6: Final answer
    x = 86,979.60

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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.