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Finding the Fourth Proportional to 124,412.64, 171,692.10 and 67,824.42

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Solution

The fourth proportional to 124,412.64, 171,692.10 and 67,824.42 is: 93,599.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,412.64 : 171,692.10 = 67,824.42 : x
  2. Step 2: Convert to fraction form
    124,412.64/171,692.10 = 67,824.42/x
  3. Step 3: Cross multiply
    124,412.64x = 171,692.10 × 67,824.42
  4. Step 4: Simplify right side
    124,412.64x = 11,644,917,101.08
  5. Step 5: Solve for x
    x = 11,644,917,101.08/124,412.64
  6. Step 6: Final answer
    x = 93,599.15

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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.