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Finding the Fourth Proportional to 591,393.76, 887,090.54 and 142,114.64

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Solution

The fourth proportional to 591,393.76, 887,090.54 and 142,114.64 is: 213,171.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    591,393.76 : 887,090.54 = 142,114.64 : x
  2. Step 2: Convert to fraction form
    591,393.76/887,090.54 = 142,114.64/x
  3. Step 3: Cross multiply
    591,393.76x = 887,090.54 × 142,114.64
  4. Step 4: Simplify right side
    591,393.76x = 126,068,552,739.51
  5. Step 5: Solve for x
    x = 126,068,552,739.51/591,393.76
  6. Step 6: Final answer
    x = 213,171.94

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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.