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Finding the Fourth Proportional to 125,455, 173,129.93 and 68,095.46

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Solution

The fourth proportional to 125,455, 173,129.93 and 68,095.46 is: 93,972.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,455 : 173,129.93 = 68,095.46 : x
  2. Step 2: Convert to fraction form
    125,455/173,129.93 = 68,095.46/x
  3. Step 3: Cross multiply
    125,455x = 173,129.93 × 68,095.46
  4. Step 4: Simplify right side
    125,455x = 11,789,362,223.12
  5. Step 5: Solve for x
    x = 11,789,362,223.12/125,455
  6. Step 6: Final answer
    x = 93,972.84

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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.