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Finding the Fourth Proportional to 501,430.62, 752,147.55 and 127,453.62

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Solution

The fourth proportional to 501,430.62, 752,147.55 and 127,453.62 is: 191,180.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,430.62 : 752,147.55 = 127,453.62 : x
  2. Step 2: Convert to fraction form
    501,430.62/752,147.55 = 127,453.62/x
  3. Step 3: Cross multiply
    501,430.62x = 752,147.55 × 127,453.62
  4. Step 4: Simplify right side
    501,430.62x = 95,863,928,021.63
  5. Step 5: Solve for x
    x = 95,863,928,021.63/501,430.62
  6. Step 6: Final answer
    x = 191,180.84

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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.