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Finding the Fourth Proportional to 233,421.40, 349,728.90 and 108,506.20

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Solution

The fourth proportional to 233,421.40, 349,728.90 and 108,506.20 is: 162,571.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    233,421.40 : 349,728.90 = 108,506.20 : x
  2. Step 2: Convert to fraction form
    233,421.40/349,728.90 = 108,506.20/x
  3. Step 3: Cross multiply
    233,421.40x = 349,728.90 × 108,506.20
  4. Step 4: Simplify right side
    233,421.40x = 37,947,753,969.18
  5. Step 5: Solve for x
    x = 37,947,753,969.18/233,421.40
  6. Step 6: Final answer
    x = 162,571.87

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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.