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Finding the Fourth Proportional to 291,061.20, 436,534.20 and 141,301.20

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Solution

The fourth proportional to 291,061.20, 436,534.20 and 141,301.20 is: 211,923.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,061.20 : 436,534.20 = 141,301.20 : x
  2. Step 2: Convert to fraction form
    291,061.20/436,534.20 = 141,301.20/x
  3. Step 3: Cross multiply
    291,061.20x = 436,534.20 × 141,301.20
  4. Step 4: Simplify right side
    291,061.20x = 61,682,806,301.04
  5. Step 5: Solve for x
    x = 61,682,806,301.04/291,061.20
  6. Step 6: Final answer
    x = 211,923.84

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