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Finding the Fourth Proportional to 156,958.95, 235,493.10 and 68,276.10

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Solution

The fourth proportional to 156,958.95, 235,493.10 and 68,276.10 is: 102,437.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,958.95 : 235,493.10 = 68,276.10 : x
  2. Step 2: Convert to fraction form
    156,958.95/235,493.10 = 68,276.10/x
  3. Step 3: Cross multiply
    156,958.95x = 235,493.10 × 68,276.10
  4. Step 4: Simplify right side
    156,958.95x = 16,078,550,444.91
  5. Step 5: Solve for x
    x = 16,078,550,444.91/156,958.95
  6. Step 6: Final answer
    x = 102,437.93

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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.