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Finding the Fourth Proportional to 71,558.40, 98,748.68 and 42,894.26

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Solution

The fourth proportional to 71,558.40, 98,748.68 and 42,894.26 is: 59,192.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,558.40 : 98,748.68 = 42,894.26 : x
  2. Step 2: Convert to fraction form
    71,558.40/98,748.68 = 42,894.26/x
  3. Step 3: Cross multiply
    71,558.40x = 98,748.68 × 42,894.26
  4. Step 4: Simplify right side
    71,558.40x = 4,235,751,554.58
  5. Step 5: Solve for x
    x = 4,235,751,554.58/71,558.40
  6. Step 6: Final answer
    x = 59,192.93

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.