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Finding the Fourth Proportional to 174,661.64, 261,804.15 and 84,513.95

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Solution

The fourth proportional to 174,661.64, 261,804.15 and 84,513.95 is: 126,679.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,661.64 : 261,804.15 = 84,513.95 : x
  2. Step 2: Convert to fraction form
    174,661.64/261,804.15 = 84,513.95/x
  3. Step 3: Cross multiply
    174,661.64x = 261,804.15 × 84,513.95
  4. Step 4: Simplify right side
    174,661.64x = 22,126,101,533.87
  5. Step 5: Solve for x
    x = 22,126,101,533.87/174,661.64
  6. Step 6: Final answer
    x = 126,679.80

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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.