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Finding the Fourth Proportional to 167,005.21, 230,491.81 and 105,756.99

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Solution

The fourth proportional to 167,005.21, 230,491.81 and 105,756.99 is: 145,960.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,005.21 : 230,491.81 = 105,756.99 : x
  2. Step 2: Convert to fraction form
    167,005.21/230,491.81 = 105,756.99/x
  3. Step 3: Cross multiply
    167,005.21x = 230,491.81 × 105,756.99
  4. Step 4: Simplify right side
    167,005.21x = 24,376,120,045.25
  5. Step 5: Solve for x
    x = 24,376,120,045.25/167,005.21
  6. Step 6: Final answer
    x = 145,960.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.