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Finding the Fourth Proportional to 127,133.82, 175,509.99 and 89,575.74

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Solution

The fourth proportional to 127,133.82, 175,509.99 and 89,575.74 is: 123,660.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,133.82 : 175,509.99 = 89,575.74 : x
  2. Step 2: Convert to fraction form
    127,133.82/175,509.99 = 89,575.74/x
  3. Step 3: Cross multiply
    127,133.82x = 175,509.99 × 89,575.74
  4. Step 4: Simplify right side
    127,133.82x = 15,721,437,231.64
  5. Step 5: Solve for x
    x = 15,721,437,231.64/127,133.82
  6. Step 6: Final answer
    x = 123,660.54

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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.