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Finding the Fourth Proportional to 71,263.36, 98,342.80 and 42,581.46

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Solution

The fourth proportional to 71,263.36, 98,342.80 and 42,581.46 is: 58,762.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,263.36 : 98,342.80 = 42,581.46 : x
  2. Step 2: Convert to fraction form
    71,263.36/98,342.80 = 42,581.46/x
  3. Step 3: Cross multiply
    71,263.36x = 98,342.80 × 42,581.46
  4. Step 4: Simplify right side
    71,263.36x = 4,187,580,004.49
  5. Step 5: Solve for x
    x = 4,187,580,004.49/71,263.36
  6. Step 6: Final answer
    x = 58,762.03

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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.