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Finding the Fourth Proportional to 156,693.70, 235,133.92 and 56,861.68

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Solution

The fourth proportional to 156,693.70, 235,133.92 and 56,861.68 is: 85,326.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,693.70 : 235,133.92 = 56,861.68 : x
  2. Step 2: Convert to fraction form
    156,693.70/235,133.92 = 56,861.68/x
  3. Step 3: Cross multiply
    156,693.70x = 235,133.92 × 56,861.68
  4. Step 4: Simplify right side
    156,693.70x = 13,370,109,716.19
  5. Step 5: Solve for x
    x = 13,370,109,716.19/156,693.70
  6. Step 6: Final answer
    x = 85,326.40

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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.