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Finding the Fourth Proportional to 407,670.29, 611,535.53 and 108,144.25

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Solution

The fourth proportional to 407,670.29, 611,535.53 and 108,144.25 is: 162,224.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,670.29 : 611,535.53 = 108,144.25 : x
  2. Step 2: Convert to fraction form
    407,670.29/611,535.53 = 108,144.25/x
  3. Step 3: Cross multiply
    407,670.29x = 611,535.53 × 108,144.25
  4. Step 4: Simplify right side
    407,670.29x = 66,134,051,240.20
  5. Step 5: Solve for x
    x = 66,134,051,240.20/407,670.29
  6. Step 6: Final answer
    x = 162,224.36

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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.