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Finding the Fourth Proportional to 436,952.56, 655,428.54 and 121,409.32

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Solution

The fourth proportional to 436,952.56, 655,428.54 and 121,409.32 is: 182,113.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,952.56 : 655,428.54 = 121,409.32 : x
  2. Step 2: Convert to fraction form
    436,952.56/655,428.54 = 121,409.32/x
  3. Step 3: Cross multiply
    436,952.56x = 655,428.54 × 121,409.32
  4. Step 4: Simplify right side
    436,952.56x = 79,575,133,349.99
  5. Step 5: Solve for x
    x = 79,575,133,349.99/436,952.56
  6. Step 6: Final answer
    x = 182,113.90

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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.