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Finding the Fourth Proportional to 156,980.70, 235,427.85 and 63,495.90

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Solution

The fourth proportional to 156,980.70, 235,427.85 and 63,495.90 is: 95,226.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,980.70 : 235,427.85 = 63,495.90 : x
  2. Step 2: Convert to fraction form
    156,980.70/235,427.85 = 63,495.90/x
  3. Step 3: Cross multiply
    156,980.70x = 235,427.85 × 63,495.90
  4. Step 4: Simplify right side
    156,980.70x = 14,948,703,220.82
  5. Step 5: Solve for x
    x = 14,948,703,220.82/156,980.70
  6. Step 6: Final answer
    x = 95,226.38

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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.