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Finding the Fourth Proportional to 178,859.84, 246,821.46 and 101,328.26

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Solution

The fourth proportional to 178,859.84, 246,821.46 and 101,328.26 is: 139,830.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,859.84 : 246,821.46 = 101,328.26 : x
  2. Step 2: Convert to fraction form
    178,859.84/246,821.46 = 101,328.26/x
  3. Step 3: Cross multiply
    178,859.84x = 246,821.46 × 101,328.26
  4. Step 4: Simplify right side
    178,859.84x = 25,009,989,072.46
  5. Step 5: Solve for x
    x = 25,009,989,072.46/178,859.84
  6. Step 6: Final answer
    x = 139,830.10

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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.