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Finding the Fourth Proportional to 171,506.16, 236,693.16 and 99,892.80

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Solution

The fourth proportional to 171,506.16, 236,693.16 and 99,892.80 is: 137,860.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,506.16 : 236,693.16 = 99,892.80 : x
  2. Step 2: Convert to fraction form
    171,506.16/236,693.16 = 99,892.80/x
  3. Step 3: Cross multiply
    171,506.16x = 236,693.16 × 99,892.80
  4. Step 4: Simplify right side
    171,506.16x = 23,643,942,493.25
  5. Step 5: Solve for x
    x = 23,643,942,493.25/171,506.16
  6. Step 6: Final answer
    x = 137,860.60

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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.