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Finding the Fourth Proportional to 113,052.84, 155,989.74 and 64,652.04

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Solution

The fourth proportional to 113,052.84, 155,989.74 and 64,652.04 is: 89,206.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,052.84 : 155,989.74 = 64,652.04 : x
  2. Step 2: Convert to fraction form
    113,052.84/155,989.74 = 64,652.04/x
  3. Step 3: Cross multiply
    113,052.84x = 155,989.74 × 64,652.04
  4. Step 4: Simplify right side
    113,052.84x = 10,085,054,910.07
  5. Step 5: Solve for x
    x = 10,085,054,910.07/113,052.84
  6. Step 6: Final answer
    x = 89,206.56

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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.