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Finding the Fourth Proportional to 156,957.60, 235,436.40 and 57,230.40

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Solution

The fourth proportional to 156,957.60, 235,436.40 and 57,230.40 is: 85,845.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,957.60 : 235,436.40 = 57,230.40 : x
  2. Step 2: Convert to fraction form
    156,957.60/235,436.40 = 57,230.40/x
  3. Step 3: Cross multiply
    156,957.60x = 235,436.40 × 57,230.40
  4. Step 4: Simplify right side
    156,957.60x = 13,474,119,346.56
  5. Step 5: Solve for x
    x = 13,474,119,346.56/156,957.60
  6. Step 6: Final answer
    x = 85,845.60

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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.