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Finding the Fourth Proportional to 365,484.69, 548,274.29 and 140,909.36

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Solution

The fourth proportional to 365,484.69, 548,274.29 and 140,909.36 is: 211,382.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    365,484.69 : 548,274.29 = 140,909.36 : x
  2. Step 2: Convert to fraction form
    365,484.69/548,274.29 = 140,909.36/x
  3. Step 3: Cross multiply
    365,484.69x = 548,274.29 × 140,909.36
  4. Step 4: Simplify right side
    365,484.69x = 77,256,975,862.44
  5. Step 5: Solve for x
    x = 77,256,975,862.44/365,484.69
  6. Step 6: Final answer
    x = 211,382.25

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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.