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Finding the Fourth Proportional to 344,133.99, 516,274.77 and 144,339.21

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Solution

The fourth proportional to 344,133.99, 516,274.77 and 144,339.21 is: 216,539.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    344,133.99 : 516,274.77 = 144,339.21 : x
  2. Step 2: Convert to fraction form
    344,133.99/516,274.77 = 144,339.21/x
  3. Step 3: Cross multiply
    344,133.99x = 516,274.77 × 144,339.21
  4. Step 4: Simplify right side
    344,133.99x = 74,518,692,444.73
  5. Step 5: Solve for x
    x = 74,518,692,444.73/344,133.99
  6. Step 6: Final answer
    x = 216,539.76

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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.