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Finding the Fourth Proportional to 127,231.92, 175,580.44 and 70,643.44

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Solution

The fourth proportional to 127,231.92, 175,580.44 and 70,643.44 is: 97,488.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,231.92 : 175,580.44 = 70,643.44 : x
  2. Step 2: Convert to fraction form
    127,231.92/175,580.44 = 70,643.44/x
  3. Step 3: Cross multiply
    127,231.92x = 175,580.44 × 70,643.44
  4. Step 4: Simplify right side
    127,231.92x = 12,403,606,278.31
  5. Step 5: Solve for x
    x = 12,403,606,278.31/127,231.92
  6. Step 6: Final answer
    x = 97,488.16

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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.