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Finding the Fourth Proportional to 217,160.88, 325,784.89 and 75,011.35

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Solution

The fourth proportional to 217,160.88, 325,784.89 and 75,011.35 is: 112,532.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,160.88 : 325,784.89 = 75,011.35 : x
  2. Step 2: Convert to fraction form
    217,160.88/325,784.89 = 75,011.35/x
  3. Step 3: Cross multiply
    217,160.88x = 325,784.89 × 75,011.35
  4. Step 4: Simplify right side
    217,160.88x = 24,437,563,876.71
  5. Step 5: Solve for x
    x = 24,437,563,876.71/217,160.88
  6. Step 6: Final answer
    x = 112,532.07

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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.