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Finding the Fourth Proportional to 104,509.74, 156,966.30 and 89,550.66

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Solution

The fourth proportional to 104,509.74, 156,966.30 and 89,550.66 is: 134,498.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,509.74 : 156,966.30 = 89,550.66 : x
  2. Step 2: Convert to fraction form
    104,509.74/156,966.30 = 89,550.66/x
  3. Step 3: Cross multiply
    104,509.74x = 156,966.30 × 89,550.66
  4. Step 4: Simplify right side
    104,509.74x = 14,056,435,762.76
  5. Step 5: Solve for x
    x = 14,056,435,762.76/104,509.74
  6. Step 6: Final answer
    x = 134,498.81

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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.