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Finding the Fourth Proportional to 423,183.99, 634,628.36 and 186,397.50

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Solution

The fourth proportional to 423,183.99, 634,628.36 and 186,397.50 is: 279,531.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,183.99 : 634,628.36 = 186,397.50 : x
  2. Step 2: Convert to fraction form
    423,183.99/634,628.36 = 186,397.50/x
  3. Step 3: Cross multiply
    423,183.99x = 634,628.36 × 186,397.50
  4. Step 4: Simplify right side
    423,183.99x = 118,293,138,801.11
  5. Step 5: Solve for x
    x = 118,293,138,801.11/423,183.99
  6. Step 6: Final answer
    x = 279,531.22

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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.