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Finding the Fourth Proportional to 114,352.88, 157,806.98 and 69,640.88

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Solution

The fourth proportional to 114,352.88, 157,806.98 and 69,640.88 is: 96,104.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,352.88 : 157,806.98 = 69,640.88 : x
  2. Step 2: Convert to fraction form
    114,352.88/157,806.98 = 69,640.88/x
  3. Step 3: Cross multiply
    114,352.88x = 157,806.98 × 69,640.88
  4. Step 4: Simplify right side
    114,352.88x = 10,989,815,820.10
  5. Step 5: Solve for x
    x = 10,989,815,820.10/114,352.88
  6. Step 6: Final answer
    x = 96,104.41

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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.