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Finding the Fourth Proportional to 127,483.12, 191,224.64 and 38,736.32

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Solution

The fourth proportional to 127,483.12, 191,224.64 and 38,736.32 is: 58,104.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,483.12 : 191,224.64 = 38,736.32 : x
  2. Step 2: Convert to fraction form
    127,483.12/191,224.64 = 38,736.32/x
  3. Step 3: Cross multiply
    127,483.12x = 191,224.64 × 38,736.32
  4. Step 4: Simplify right side
    127,483.12x = 7,407,338,846.92
  5. Step 5: Solve for x
    x = 7,407,338,846.92/127,483.12
  6. Step 6: Final answer
    x = 58,104.47

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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.