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Finding the Fourth Proportional to 325,534.60, 487,913.10 and 167,681.80

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Solution

The fourth proportional to 325,534.60, 487,913.10 and 167,681.80 is: 251,322.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,534.60 : 487,913.10 = 167,681.80 : x
  2. Step 2: Convert to fraction form
    325,534.60/487,913.10 = 167,681.80/x
  3. Step 3: Cross multiply
    325,534.60x = 487,913.10 × 167,681.80
  4. Step 4: Simplify right side
    325,534.60x = 81,814,146,851.58
  5. Step 5: Solve for x
    x = 81,814,146,851.58/325,534.60
  6. Step 6: Final answer
    x = 251,322.43

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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.