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Finding the Fourth Proportional to 104,416.90, 156,625.35 and 72,924.10

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Solution

The fourth proportional to 104,416.90, 156,625.35 and 72,924.10 is: 109,386.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,416.90 : 156,625.35 = 72,924.10 : x
  2. Step 2: Convert to fraction form
    104,416.90/156,625.35 = 72,924.10/x
  3. Step 3: Cross multiply
    104,416.90x = 156,625.35 × 72,924.10
  4. Step 4: Simplify right side
    104,416.90x = 11,421,762,685.94
  5. Step 5: Solve for x
    x = 11,421,762,685.94/104,416.90
  6. Step 6: Final answer
    x = 109,386.15

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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.