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Finding the Fourth Proportional to 92,917.24, 128,214.90 and 54,668.39

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Solution

The fourth proportional to 92,917.24, 128,214.90 and 54,668.39 is: 75,435.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,917.24 : 128,214.90 = 54,668.39 : x
  2. Step 2: Convert to fraction form
    92,917.24/128,214.90 = 54,668.39/x
  3. Step 3: Cross multiply
    92,917.24x = 128,214.90 × 54,668.39
  4. Step 4: Simplify right side
    92,917.24x = 7,009,301,515.94
  5. Step 5: Solve for x
    x = 7,009,301,515.94/92,917.24
  6. Step 6: Final answer
    x = 75,435.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.