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Finding the Fourth Proportional to 317,255.84, 475,858.53 and 127,582.49

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Solution

The fourth proportional to 317,255.84, 475,858.53 and 127,582.49 is: 191,363.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,255.84 : 475,858.53 = 127,582.49 : x
  2. Step 2: Convert to fraction form
    317,255.84/475,858.53 = 127,582.49/x
  3. Step 3: Cross multiply
    317,255.84x = 475,858.53 × 127,582.49
  4. Step 4: Simplify right side
    317,255.84x = 60,711,217,334.79
  5. Step 5: Solve for x
    x = 60,711,217,334.79/317,255.84
  6. Step 6: Final answer
    x = 191,363.59

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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.