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Finding the Fourth Proportional to 234,980.72, 324,272.32 and 127,549.88

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Solution

The fourth proportional to 234,980.72, 324,272.32 and 127,549.88 is: 176,018.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,980.72 : 324,272.32 = 127,549.88 : x
  2. Step 2: Convert to fraction form
    234,980.72/324,272.32 = 127,549.88/x
  3. Step 3: Cross multiply
    234,980.72x = 324,272.32 × 127,549.88
  4. Step 4: Simplify right side
    234,980.72x = 41,360,895,503.32
  5. Step 5: Solve for x
    x = 41,360,895,503.32/234,980.72
  6. Step 6: Final answer
    x = 176,018.25

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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.