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Finding the Fourth Proportional to 104,490, 156,581.36 and 61,751.44

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Solution

The fourth proportional to 104,490, 156,581.36 and 61,751.44 is: 92,536.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,490 : 156,581.36 = 61,751.44 : x
  2. Step 2: Convert to fraction form
    104,490/156,581.36 = 61,751.44/x
  3. Step 3: Cross multiply
    104,490x = 156,581.36 × 61,751.44
  4. Step 4: Simplify right side
    104,490x = 9,669,124,457.16
  5. Step 5: Solve for x
    x = 9,669,124,457.16/104,490
  6. Step 6: Final answer
    x = 92,536.36

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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.