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Finding the Fourth Proportional to 341,046.56, 511,569.12 and 91,728.80

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Solution

The fourth proportional to 341,046.56, 511,569.12 and 91,728.80 is: 137,593.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,046.56 : 511,569.12 = 91,728.80 : x
  2. Step 2: Convert to fraction form
    341,046.56/511,569.12 = 91,728.80/x
  3. Step 3: Cross multiply
    341,046.56x = 511,569.12 × 91,728.80
  4. Step 4: Simplify right side
    341,046.56x = 46,925,621,494.66
  5. Step 5: Solve for x
    x = 46,925,621,494.66/341,046.56
  6. Step 6: Final answer
    x = 137,593.01

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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.