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Finding the Fourth Proportional to 231,491.90, 347,262.76 and 73,683.45

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Solution

The fourth proportional to 231,491.90, 347,262.76 and 73,683.45 is: 110,533.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,491.90 : 347,262.76 = 73,683.45 : x
  2. Step 2: Convert to fraction form
    231,491.90/347,262.76 = 73,683.45/x
  3. Step 3: Cross multiply
    231,491.90x = 347,262.76 × 73,683.45
  4. Step 4: Simplify right side
    231,491.90x = 25,587,518,213.32
  5. Step 5: Solve for x
    x = 25,587,518,213.32/231,491.90
  6. Step 6: Final answer
    x = 110,533.10

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1.5x scale

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.