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Finding the Fourth Proportional to 325,763.95, 487,980.71 and 167,660.25

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Solution

The fourth proportional to 325,763.95, 487,980.71 and 167,660.25 is: 251,148.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,763.95 : 487,980.71 = 167,660.25 : x
  2. Step 2: Convert to fraction form
    325,763.95/487,980.71 = 167,660.25/x
  3. Step 3: Cross multiply
    325,763.95x = 487,980.71 × 167,660.25
  4. Step 4: Simplify right side
    325,763.95x = 81,814,966,995.48
  5. Step 5: Solve for x
    x = 81,814,966,995.48/325,763.95
  6. Step 6: Final answer
    x = 251,148.01

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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.