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Finding the Fourth Proportional to 125,277.64, 172,882.96 and 68,692.64

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Solution

The fourth proportional to 125,277.64, 172,882.96 and 68,692.64 is: 94,795.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,277.64 : 172,882.96 = 68,692.64 : x
  2. Step 2: Convert to fraction form
    125,277.64/172,882.96 = 68,692.64/x
  3. Step 3: Cross multiply
    125,277.64x = 172,882.96 × 68,692.64
  4. Step 4: Simplify right side
    125,277.64x = 11,875,786,933.41
  5. Step 5: Solve for x
    x = 11,875,786,933.41/125,277.64
  6. Step 6: Final answer
    x = 94,795.74

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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.