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Finding the Fourth Proportional to 125,173.32, 188,153.64 and 108,738.02

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Solution

The fourth proportional to 125,173.32, 188,153.64 and 108,738.02 is: 163,449.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,173.32 : 188,153.64 = 108,738.02 : x
  2. Step 2: Convert to fraction form
    125,173.32/188,153.64 = 108,738.02/x
  3. Step 3: Cross multiply
    125,173.32x = 188,153.64 × 108,738.02
  4. Step 4: Simplify right side
    125,173.32x = 20,459,454,269.39
  5. Step 5: Solve for x
    x = 20,459,454,269.39/125,173.32
  6. Step 6: Final answer
    x = 163,449.00

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.