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Finding the Fourth Proportional to 156,633.15, 234,785.70 and 61,826.70

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Solution

The fourth proportional to 156,633.15, 234,785.70 and 61,826.70 is: 92,675.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,633.15 : 234,785.70 = 61,826.70 : x
  2. Step 2: Convert to fraction form
    156,633.15/234,785.70 = 61,826.70/x
  3. Step 3: Cross multiply
    156,633.15x = 234,785.70 × 61,826.70
  4. Step 4: Simplify right side
    156,633.15x = 14,516,025,038.19
  5. Step 5: Solve for x
    x = 14,516,025,038.19/156,633.15
  6. Step 6: Final answer
    x = 92,675.31

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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.