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Finding the Fourth Proportional to 114,708.40, 158,322.90 and 63,738.64

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Solution

The fourth proportional to 114,708.40, 158,322.90 and 63,738.64 is: 87,973.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,708.40 : 158,322.90 = 63,738.64 : x
  2. Step 2: Convert to fraction form
    114,708.40/158,322.90 = 63,738.64/x
  3. Step 3: Cross multiply
    114,708.40x = 158,322.90 × 63,738.64
  4. Step 4: Simplify right side
    114,708.40x = 10,091,286,326.86
  5. Step 5: Solve for x
    x = 10,091,286,326.86/114,708.40
  6. Step 6: Final answer
    x = 87,973.39

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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.