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Finding the Fourth Proportional to 174,305.28, 261,457.92 and 121,817.28

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Solution

The fourth proportional to 174,305.28, 261,457.92 and 121,817.28 is: 182,725.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,305.28 : 261,457.92 = 121,817.28 : x
  2. Step 2: Convert to fraction form
    174,305.28/261,457.92 = 121,817.28/x
  3. Step 3: Cross multiply
    174,305.28x = 261,457.92 × 121,817.28
  4. Step 4: Simplify right side
    174,305.28x = 31,850,092,648.86
  5. Step 5: Solve for x
    x = 31,850,092,648.86/174,305.28
  6. Step 6: Final answer
    x = 182,725.92

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1.5x scale

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.