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Finding the Fourth Proportional to 156,958.10, 235,437.15 and 112,490.90

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Solution

The fourth proportional to 156,958.10, 235,437.15 and 112,490.90 is: 168,736.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,958.10 : 235,437.15 = 112,490.90 : x
  2. Step 2: Convert to fraction form
    156,958.10/235,437.15 = 112,490.90/x
  3. Step 3: Cross multiply
    156,958.10x = 235,437.15 × 112,490.90
  4. Step 4: Simplify right side
    156,958.10x = 26,484,536,896.94
  5. Step 5: Solve for x
    x = 26,484,536,896.94/156,958.10
  6. Step 6: Final answer
    x = 168,736.35

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1.5x scale

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.