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Finding the Fourth Proportional to 344,390.94, 516,625.09 and 91,681.27

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Solution

The fourth proportional to 344,390.94, 516,625.09 and 91,681.27 is: 137,532.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    344,390.94 : 516,625.09 = 91,681.27 : x
  2. Step 2: Convert to fraction form
    344,390.94/516,625.09 = 91,681.27/x
  3. Step 3: Cross multiply
    344,390.94x = 516,625.09 × 91,681.27
  4. Step 4: Simplify right side
    344,390.94x = 47,364,842,844.30
  5. Step 5: Solve for x
    x = 47,364,842,844.30/344,390.94
  6. Step 6: Final answer
    x = 137,532.20

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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.