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Finding the Fourth Proportional to 457,173.39, 685,427.94 and 191,010.02

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Solution

The fourth proportional to 457,173.39, 685,427.94 and 191,010.02 is: 286,376.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,173.39 : 685,427.94 = 191,010.02 : x
  2. Step 2: Convert to fraction form
    457,173.39/685,427.94 = 191,010.02/x
  3. Step 3: Cross multiply
    457,173.39x = 685,427.94 × 191,010.02
  4. Step 4: Simplify right side
    457,173.39x = 130,923,604,527.96
  5. Step 5: Solve for x
    x = 130,923,604,527.96/457,173.39
  6. Step 6: Final answer
    x = 286,376.26

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.