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Finding the Fourth Proportional to 483,534.40, 725,128.80 and 168,001.60

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Solution

The fourth proportional to 483,534.40, 725,128.80 and 168,001.60 is: 251,942.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,534.40 : 725,128.80 = 168,001.60 : x
  2. Step 2: Convert to fraction form
    483,534.40/725,128.80 = 168,001.60/x
  3. Step 3: Cross multiply
    483,534.40x = 725,128.80 × 168,001.60
  4. Step 4: Simplify right side
    483,534.40x = 121,822,798,606.08
  5. Step 5: Solve for x
    x = 121,822,798,606.08/483,534.40
  6. Step 6: Final answer
    x = 251,942.36

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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.