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Finding the Fourth Proportional to 104,556.61, 156,746.75 and 45,347.70

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Solution

The fourth proportional to 104,556.61, 156,746.75 and 45,347.70 is: 67,983.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,556.61 : 156,746.75 = 45,347.70 : x
  2. Step 2: Convert to fraction form
    104,556.61/156,746.75 = 45,347.70/x
  3. Step 3: Cross multiply
    104,556.61x = 156,746.75 × 45,347.70
  4. Step 4: Simplify right side
    104,556.61x = 7,108,104,594.98
  5. Step 5: Solve for x
    x = 7,108,104,594.98/104,556.61
  6. Step 6: Final answer
    x = 67,983.31

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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.