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Finding the Fourth Proportional to 125,477.64, 173,153.70 and 68,889.96

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Solution

The fourth proportional to 125,477.64, 173,153.70 and 68,889.96 is: 95,065.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,477.64 : 173,153.70 = 68,889.96 : x
  2. Step 2: Convert to fraction form
    125,477.64/173,153.70 = 68,889.96/x
  3. Step 3: Cross multiply
    125,477.64x = 173,153.70 × 68,889.96
  4. Step 4: Simplify right side
    125,477.64x = 11,928,551,466.85
  5. Step 5: Solve for x
    x = 11,928,551,466.85/125,477.64
  6. Step 6: Final answer
    x = 95,065.16

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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.