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Finding the Fourth Proportional to 361,532.16, 542,343.60 and 108,773.28

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Solution

The fourth proportional to 361,532.16, 542,343.60 and 108,773.28 is: 163,173.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,532.16 : 542,343.60 = 108,773.28 : x
  2. Step 2: Convert to fraction form
    361,532.16/542,343.60 = 108,773.28/x
  3. Step 3: Cross multiply
    361,532.16x = 542,343.60 × 108,773.28
  4. Step 4: Simplify right side
    361,532.16x = 58,992,492,259.01
  5. Step 5: Solve for x
    x = 58,992,492,259.01/361,532.16
  6. Step 6: Final answer
    x = 163,173.57

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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.