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Finding the Fourth Proportional to 334,057.80, 501,086.70 and 84,739.80

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Solution

The fourth proportional to 334,057.80, 501,086.70 and 84,739.80 is: 127,109.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    334,057.80 : 501,086.70 = 84,739.80 : x
  2. Step 2: Convert to fraction form
    334,057.80/501,086.70 = 84,739.80/x
  3. Step 3: Cross multiply
    334,057.80x = 501,086.70 × 84,739.80
  4. Step 4: Simplify right side
    334,057.80x = 42,461,986,740.66
  5. Step 5: Solve for x
    x = 42,461,986,740.66/334,057.80
  6. Step 6: Final answer
    x = 127,109.70

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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.