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Finding the Fourth Proportional to 104,600.64, 156,989.76 and 45,483.84

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Solution

The fourth proportional to 104,600.64, 156,989.76 and 45,483.84 is: 68,264.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,600.64 : 156,989.76 = 45,483.84 : x
  2. Step 2: Convert to fraction form
    104,600.64/156,989.76 = 45,483.84/x
  3. Step 3: Cross multiply
    104,600.64x = 156,989.76 × 45,483.84
  4. Step 4: Simplify right side
    104,600.64x = 7,140,497,125.48
  5. Step 5: Solve for x
    x = 7,140,497,125.48/104,600.64
  6. Step 6: Final answer
    x = 68,264.37

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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.