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Finding the Fourth Proportional to 127,309.93, 175,709.35 and 73,627.58

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Solution

The fourth proportional to 127,309.93, 175,709.35 and 73,627.58 is: 101,618.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,309.93 : 175,709.35 = 73,627.58 : x
  2. Step 2: Convert to fraction form
    127,309.93/175,709.35 = 73,627.58/x
  3. Step 3: Cross multiply
    127,309.93x = 175,709.35 × 73,627.58
  4. Step 4: Simplify right side
    127,309.93x = 12,937,054,755.18
  5. Step 5: Solve for x
    x = 12,937,054,755.18/127,309.93
  6. Step 6: Final answer
    x = 101,618.59

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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.