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Finding the Fourth Proportional to 92,883.68, 128,182.02 and 54,645.92

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Solution

The fourth proportional to 92,883.68, 128,182.02 and 54,645.92 is: 75,412.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,883.68 : 128,182.02 = 54,645.92 : x
  2. Step 2: Convert to fraction form
    92,883.68/128,182.02 = 54,645.92/x
  3. Step 3: Cross multiply
    92,883.68x = 128,182.02 × 54,645.92
  4. Step 4: Simplify right side
    92,883.68x = 7,004,624,410.36
  5. Step 5: Solve for x
    x = 7,004,624,410.36/92,883.68
  6. Step 6: Final answer
    x = 75,412.86

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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.