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Finding the Fourth Proportional to 114,642.37, 158,206.80 and 63,655.21

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Solution

The fourth proportional to 114,642.37, 158,206.80 and 63,655.21 is: 87,844.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,642.37 : 158,206.80 = 63,655.21 : x
  2. Step 2: Convert to fraction form
    114,642.37/158,206.80 = 63,655.21/x
  3. Step 3: Cross multiply
    114,642.37x = 158,206.80 × 63,655.21
  4. Step 4: Simplify right side
    114,642.37x = 10,070,687,077.43
  5. Step 5: Solve for x
    x = 10,070,687,077.43/114,642.37
  6. Step 6: Final answer
    x = 87,844.37

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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.