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Finding the Fourth Proportional to 156,699.56, 235,142.74 and 56,867.56

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Solution

The fourth proportional to 156,699.56, 235,142.74 and 56,867.56 is: 85,335.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,699.56 : 235,142.74 = 56,867.56 : x
  2. Step 2: Convert to fraction form
    156,699.56/235,142.74 = 56,867.56/x
  3. Step 3: Cross multiply
    156,699.56x = 235,142.74 × 56,867.56
  4. Step 4: Simplify right side
    156,699.56x = 13,371,993,358.74
  5. Step 5: Solve for x
    x = 13,371,993,358.74/156,699.56
  6. Step 6: Final answer
    x = 85,335.23

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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.