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Finding the Fourth Proportional to 235,391.81, 324,842.81 and 127,962.05

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Solution

The fourth proportional to 235,391.81, 324,842.81 and 127,962.05 is: 176,588.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,391.81 : 324,842.81 = 127,962.05 : x
  2. Step 2: Convert to fraction form
    235,391.81/324,842.81 = 127,962.05/x
  3. Step 3: Cross multiply
    235,391.81x = 324,842.81 × 127,962.05
  4. Step 4: Simplify right side
    235,391.81x = 41,567,549,631.34
  5. Step 5: Solve for x
    x = 41,567,549,631.34/235,391.81
  6. Step 6: Final answer
    x = 176,588.77

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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.