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Finding the Fourth Proportional to 556,661.25, 835,025.55 and 157,331.88

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Solution

The fourth proportional to 556,661.25, 835,025.55 and 157,331.88 is: 236,007.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,661.25 : 835,025.55 = 157,331.88 : x
  2. Step 2: Convert to fraction form
    556,661.25/835,025.55 = 157,331.88/x
  3. Step 3: Cross multiply
    556,661.25x = 835,025.55 × 157,331.88
  4. Step 4: Simplify right side
    556,661.25x = 131,376,139,629.53
  5. Step 5: Solve for x
    x = 131,376,139,629.53/556,661.25
  6. Step 6: Final answer
    x = 236,007.34

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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.