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Finding the Fourth Proportional to 436,768.52, 655,152.57 and 121,225.32

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Solution

The fourth proportional to 436,768.52, 655,152.57 and 121,225.32 is: 181,837.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,768.52 : 655,152.57 = 121,225.32 : x
  2. Step 2: Convert to fraction form
    436,768.52/655,152.57 = 121,225.32/x
  3. Step 3: Cross multiply
    436,768.52x = 655,152.57 × 121,225.32
  4. Step 4: Simplify right side
    436,768.52x = 79,421,079,947.07
  5. Step 5: Solve for x
    x = 79,421,079,947.07/436,768.52
  6. Step 6: Final answer
    x = 181,837.92

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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.