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Finding the Fourth Proportional to 127,953.60, 191,928.60 and 57,832.80

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Solution

The fourth proportional to 127,953.60, 191,928.60 and 57,832.80 is: 86,748.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,953.60 : 191,928.60 = 57,832.80 : x
  2. Step 2: Convert to fraction form
    127,953.60/191,928.60 = 57,832.80/x
  3. Step 3: Cross multiply
    127,953.60x = 191,928.60 × 57,832.80
  4. Step 4: Simplify right side
    127,953.60x = 11,099,768,338.08
  5. Step 5: Solve for x
    x = 11,099,768,338.08/127,953.60
  6. Step 6: Final answer
    x = 86,748.39

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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.