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Finding the Fourth Proportional to 92,698.92, 127,800.81 and 73,641.96

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Solution

The fourth proportional to 92,698.92, 127,800.81 and 73,641.96 is: 101,527.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,698.92 : 127,800.81 = 73,641.96 : x
  2. Step 2: Convert to fraction form
    92,698.92/127,800.81 = 73,641.96/x
  3. Step 3: Cross multiply
    92,698.92x = 127,800.81 × 73,641.96
  4. Step 4: Simplify right side
    92,698.92x = 9,411,502,137.99
  5. Step 5: Solve for x
    x = 9,411,502,137.99/92,698.92
  6. Step 6: Final answer
    x = 101,527.64

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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.