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Finding the Fourth Proportional to 174,648.40, 262,087.80 and 63,840.40

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Solution

The fourth proportional to 174,648.40, 262,087.80 and 63,840.40 is: 95,802.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,648.40 : 262,087.80 = 63,840.40 : x
  2. Step 2: Convert to fraction form
    174,648.40/262,087.80 = 63,840.40/x
  3. Step 3: Cross multiply
    174,648.40x = 262,087.80 × 63,840.40
  4. Step 4: Simplify right side
    174,648.40x = 16,731,789,987.12
  5. Step 5: Solve for x
    x = 16,731,789,987.12/174,648.40
  6. Step 6: Final answer
    x = 95,802.71

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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.