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Finding the Fourth Proportional to 127,615.77, 176,148.50 and 73,913.97

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Solution

The fourth proportional to 127,615.77, 176,148.50 and 73,913.97 is: 102,023.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,615.77 : 176,148.50 = 73,913.97 : x
  2. Step 2: Convert to fraction form
    127,615.77/176,148.50 = 73,913.97/x
  3. Step 3: Cross multiply
    127,615.77x = 176,148.50 × 73,913.97
  4. Step 4: Simplify right side
    127,615.77x = 13,019,834,574.98
  5. Step 5: Solve for x
    x = 13,019,834,574.98/127,615.77
  6. Step 6: Final answer
    x = 102,023.71

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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.