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Finding the Fourth Proportional to 162,505.53, 243,788.81 and 73,765.28

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Solution

The fourth proportional to 162,505.53, 243,788.81 and 73,765.28 is: 110,661.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,505.53 : 243,788.81 = 73,765.28 : x
  2. Step 2: Convert to fraction form
    162,505.53/243,788.81 = 73,765.28/x
  3. Step 3: Cross multiply
    162,505.53x = 243,788.81 × 73,765.28
  4. Step 4: Simplify right side
    162,505.53x = 17,983,149,830.52
  5. Step 5: Solve for x
    x = 17,983,149,830.52/162,505.53
  6. Step 6: Final answer
    x = 110,661.77

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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.