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Finding the Fourth Proportional to 78,526.44, 108,406.62 and 60,581.16

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Solution

The fourth proportional to 78,526.44, 108,406.62 and 60,581.16 is: 83,632.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,526.44 : 108,406.62 = 60,581.16 : x
  2. Step 2: Convert to fraction form
    78,526.44/108,406.62 = 60,581.16/x
  3. Step 3: Cross multiply
    78,526.44x = 108,406.62 × 60,581.16
  4. Step 4: Simplify right side
    78,526.44x = 6,567,398,791.28
  5. Step 5: Solve for x
    x = 6,567,398,791.28/78,526.44
  6. Step 6: Final answer
    x = 83,632.96

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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.