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Finding the Fourth Proportional to 125,457, 173,132.69 and 68,097.46

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Solution

The fourth proportional to 125,457, 173,132.69 and 68,097.46 is: 93,975.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,457 : 173,132.69 = 68,097.46 : x
  2. Step 2: Convert to fraction form
    125,457/173,132.69 = 68,097.46/x
  3. Step 3: Cross multiply
    125,457x = 173,132.69 × 68,097.46
  4. Step 4: Simplify right side
    125,457x = 11,789,896,431.97
  5. Step 5: Solve for x
    x = 11,789,896,431.97/125,457
  6. Step 6: Final answer
    x = 93,975.60

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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.