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Finding the Fourth Proportional to 104,570.74, 156,445.51 and 80,697.92

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Solution

The fourth proportional to 104,570.74, 156,445.51 and 80,697.92 is: 120,730.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,570.74 : 156,445.51 = 80,697.92 : x
  2. Step 2: Convert to fraction form
    104,570.74/156,445.51 = 80,697.92/x
  3. Step 3: Cross multiply
    104,570.74x = 156,445.51 × 80,697.92
  4. Step 4: Simplify right side
    104,570.74x = 12,624,827,250.34
  5. Step 5: Solve for x
    x = 12,624,827,250.34/104,570.74
  6. Step 6: Final answer
    x = 120,730.02

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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.