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Finding the Fourth Proportional to 113,969.49, 157,277.75 and 63,668.49

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Solution

The fourth proportional to 113,969.49, 157,277.75 and 63,668.49 is: 87,862.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,969.49 : 157,277.75 = 63,668.49 : x
  2. Step 2: Convert to fraction form
    113,969.49/157,277.75 = 63,668.49/x
  3. Step 3: Cross multiply
    113,969.49x = 157,277.75 × 63,668.49
  4. Step 4: Simplify right side
    113,969.49x = 10,013,636,853.10
  5. Step 5: Solve for x
    x = 10,013,636,853.10/113,969.49
  6. Step 6: Final answer
    x = 87,862.43

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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.