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Finding the Fourth Proportional to 104,042.84, 156,087.48 and 40,869.08

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Solution

The fourth proportional to 104,042.84, 156,087.48 and 40,869.08 is: 61,312.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,042.84 : 156,087.48 = 40,869.08 : x
  2. Step 2: Convert to fraction form
    104,042.84/156,087.48 = 40,869.08/x
  3. Step 3: Cross multiply
    104,042.84x = 156,087.48 × 40,869.08
  4. Step 4: Simplify right side
    104,042.84x = 6,379,151,707.12
  5. Step 5: Solve for x
    x = 6,379,151,707.12/104,042.84
  6. Step 6: Final answer
    x = 61,312.74

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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.