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Finding the Fourth Proportional to 169,803.84, 234,334.58 and 93,321.55

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Solution

The fourth proportional to 169,803.84, 234,334.58 and 93,321.55 is: 128,786.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,803.84 : 234,334.58 = 93,321.55 : x
  2. Step 2: Convert to fraction form
    169,803.84/234,334.58 = 93,321.55/x
  3. Step 3: Cross multiply
    169,803.84x = 234,334.58 × 93,321.55
  4. Step 4: Simplify right side
    169,803.84x = 21,868,465,990.90
  5. Step 5: Solve for x
    x = 21,868,465,990.90/169,803.84
  6. Step 6: Final answer
    x = 128,786.64

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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.