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Finding the Fourth Proportional to 104,537.60, 156,741.60 and 60,142.40

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Solution

The fourth proportional to 104,537.60, 156,741.60 and 60,142.40 is: 90,176.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,537.60 : 156,741.60 = 60,142.40 : x
  2. Step 2: Convert to fraction form
    104,537.60/156,741.60 = 60,142.40/x
  3. Step 3: Cross multiply
    104,537.60x = 156,741.60 × 60,142.40
  4. Step 4: Simplify right side
    104,537.60x = 9,426,816,003.84
  5. Step 5: Solve for x
    x = 9,426,816,003.84/104,537.60
  6. Step 6: Final answer
    x = 90,176.32

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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.