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Finding the Fourth Proportional to 125,643.56, 173,388.67 and 69,058.58

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Solution

The fourth proportional to 125,643.56, 173,388.67 and 69,058.58 is: 95,301.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,643.56 : 173,388.67 = 69,058.58 : x
  2. Step 2: Convert to fraction form
    125,643.56/173,388.67 = 69,058.58/x
  3. Step 3: Cross multiply
    125,643.56x = 173,388.67 × 69,058.58
  4. Step 4: Simplify right side
    125,643.56x = 11,973,974,298.70
  5. Step 5: Solve for x
    x = 11,973,974,298.70/125,643.56
  6. Step 6: Final answer
    x = 95,301.14

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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.