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Finding the Fourth Proportional to 114,643.37, 158,208.18 and 63,656.21

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Solution

The fourth proportional to 114,643.37, 158,208.18 and 63,656.21 is: 87,845.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,643.37 : 158,208.18 = 63,656.21 : x
  2. Step 2: Convert to fraction form
    114,643.37/158,208.18 = 63,656.21/x
  3. Step 3: Cross multiply
    114,643.37x = 158,208.18 × 63,656.21
  4. Step 4: Simplify right side
    114,643.37x = 10,070,933,129.80
  5. Step 5: Solve for x
    x = 10,070,933,129.80/114,643.37
  6. Step 6: Final answer
    x = 87,845.75

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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.