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Finding the Fourth Proportional to 156,951.60, 235,038.60 and 100,705.20

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Solution

The fourth proportional to 156,951.60, 235,038.60 and 100,705.20 is: 150,808.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,951.60 : 235,038.60 = 100,705.20 : x
  2. Step 2: Convert to fraction form
    156,951.60/235,038.60 = 100,705.20/x
  3. Step 3: Cross multiply
    156,951.60x = 235,038.60 × 100,705.20
  4. Step 4: Simplify right side
    156,951.60x = 23,669,609,220.72
  5. Step 5: Solve for x
    x = 23,669,609,220.72/156,951.60
  6. Step 6: Final answer
    x = 150,808.33

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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.