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Finding the Fourth Proportional to 157,558.60, 236,337.90 and 73,318.60

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Solution

The fourth proportional to 157,558.60, 236,337.90 and 73,318.60 is: 109,977.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,558.60 : 236,337.90 = 73,318.60 : x
  2. Step 2: Convert to fraction form
    157,558.60/236,337.90 = 73,318.60/x
  3. Step 3: Cross multiply
    157,558.60x = 236,337.90 × 73,318.60
  4. Step 4: Simplify right side
    157,558.60x = 17,327,963,954.94
  5. Step 5: Solve for x
    x = 17,327,963,954.94/157,558.60
  6. Step 6: Final answer
    x = 109,977.90

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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.