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Finding the Fourth Proportional to 211,608.76, 317,495.70 and 93,196.84

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Solution

The fourth proportional to 211,608.76, 317,495.70 and 93,196.84 is: 139,831.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,608.76 : 317,495.70 = 93,196.84 : x
  2. Step 2: Convert to fraction form
    211,608.76/317,495.70 = 93,196.84/x
  3. Step 3: Cross multiply
    211,608.76x = 317,495.70 × 93,196.84
  4. Step 4: Simplify right side
    211,608.76x = 29,589,595,953.59
  5. Step 5: Solve for x
    x = 29,589,595,953.59/211,608.76
  6. Step 6: Final answer
    x = 139,831.62

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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.