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Finding the Fourth Proportional to 125,468.84, 188,252.22 and 55,298.72

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Solution

The fourth proportional to 125,468.84, 188,252.22 and 55,298.72 is: 82,969.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,468.84 : 188,252.22 = 55,298.72 : x
  2. Step 2: Convert to fraction form
    125,468.84/188,252.22 = 55,298.72/x
  3. Step 3: Cross multiply
    125,468.84x = 188,252.22 × 55,298.72
  4. Step 4: Simplify right side
    125,468.84x = 10,410,106,803.16
  5. Step 5: Solve for x
    x = 10,410,106,803.16/125,468.84
  6. Step 6: Final answer
    x = 82,969.66

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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.