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Finding the Fourth Proportional to 104,586.62, 156,879.93 and 42,300.86

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Solution

The fourth proportional to 104,586.62, 156,879.93 and 42,300.86 is: 63,451.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,586.62 : 156,879.93 = 42,300.86 : x
  2. Step 2: Convert to fraction form
    104,586.62/156,879.93 = 42,300.86/x
  3. Step 3: Cross multiply
    104,586.62x = 156,879.93 × 42,300.86
  4. Step 4: Simplify right side
    104,586.62x = 6,636,155,955.74
  5. Step 5: Solve for x
    x = 6,636,155,955.74/104,586.62
  6. Step 6: Final answer
    x = 63,451.29

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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.