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Finding the Fourth Proportional to 104,578.84, 156,868.70 and 25,693.08

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Solution

The fourth proportional to 104,578.84, 156,868.70 and 25,693.08 is: 38,539.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,578.84 : 156,868.70 = 25,693.08 : x
  2. Step 2: Convert to fraction form
    104,578.84/156,868.70 = 25,693.08/x
  3. Step 3: Cross multiply
    104,578.84x = 156,868.70 × 25,693.08
  4. Step 4: Simplify right side
    104,578.84x = 4,030,440,058.60
  5. Step 5: Solve for x
    x = 4,030,440,058.60/104,578.84
  6. Step 6: Final answer
    x = 38,539.73

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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.