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Finding the Fourth Proportional to 104,104.88, 156,312.84 and 102,549.68

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Solution

The fourth proportional to 104,104.88, 156,312.84 and 102,549.68 is: 153,977.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,104.88 : 156,312.84 = 102,549.68 : x
  2. Step 2: Convert to fraction form
    104,104.88/156,312.84 = 102,549.68/x
  3. Step 3: Cross multiply
    104,104.88x = 156,312.84 × 102,549.68
  4. Step 4: Simplify right side
    104,104.88x = 16,029,831,721.89
  5. Step 5: Solve for x
    x = 16,029,831,721.89/104,104.88
  6. Step 6: Final answer
    x = 153,977.72

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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.