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Finding the Fourth Proportional to 344,606.51, 516,934.45 and 91,885.68

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Solution

The fourth proportional to 344,606.51, 516,934.45 and 91,885.68 is: 137,835.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    344,606.51 : 516,934.45 = 91,885.68 : x
  2. Step 2: Convert to fraction form
    344,606.51/516,934.45 = 91,885.68/x
  3. Step 3: Cross multiply
    344,606.51x = 516,934.45 × 91,885.68
  4. Step 4: Simplify right side
    344,606.51x = 47,498,871,630.03
  5. Step 5: Solve for x
    x = 47,498,871,630.03/344,606.51
  6. Step 6: Final answer
    x = 137,835.10

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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.