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Finding the Fourth Proportional to 174,431, 261,685.50 and 63,623

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Solution

The fourth proportional to 174,431, 261,685.50 and 63,623 is: 95,448.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,431 : 261,685.50 = 63,623 : x
  2. Step 2: Convert to fraction form
    174,431/261,685.50 = 63,623/x
  3. Step 3: Cross multiply
    174,431x = 261,685.50 × 63,623
  4. Step 4: Simplify right side
    174,431x = 16,649,216,566.50
  5. Step 5: Solve for x
    x = 16,649,216,566.50/174,431
  6. Step 6: Final answer
    x = 95,448.73

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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.