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Finding the Fourth Proportional to 98,111.10, 146,838.60 and 68,586.60

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Solution

The fourth proportional to 98,111.10, 146,838.60 and 68,586.60 is: 102,650.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,111.10 : 146,838.60 = 68,586.60 : x
  2. Step 2: Convert to fraction form
    98,111.10/146,838.60 = 68,586.60/x
  3. Step 3: Cross multiply
    98,111.10x = 146,838.60 × 68,586.60
  4. Step 4: Simplify right side
    98,111.10x = 10,071,160,322.76
  5. Step 5: Solve for x
    x = 10,071,160,322.76/98,111.10
  6. Step 6: Final answer
    x = 102,650.57

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.