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Finding the Fourth Proportional to 127,775.25, 176,322.51 and 73,315.89

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Solution

The fourth proportional to 127,775.25, 176,322.51 and 73,315.89 is: 101,171.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,775.25 : 176,322.51 = 73,315.89 : x
  2. Step 2: Convert to fraction form
    127,775.25/176,322.51 = 73,315.89/x
  3. Step 3: Cross multiply
    127,775.25x = 176,322.51 × 73,315.89
  4. Step 4: Simplify right side
    127,775.25x = 12,927,241,747.68
  5. Step 5: Solve for x
    x = 12,927,241,747.68/127,775.25
  6. Step 6: Final answer
    x = 101,171.72

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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.