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Finding the Fourth Proportional to 127,491.94, 191,241.96 and 38,746.22

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Solution

The fourth proportional to 127,491.94, 191,241.96 and 38,746.22 is: 58,120.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,491.94 : 191,241.96 = 38,746.22 : x
  2. Step 2: Convert to fraction form
    127,491.94/191,241.96 = 38,746.22/x
  3. Step 3: Cross multiply
    127,491.94x = 191,241.96 × 38,746.22
  4. Step 4: Simplify right side
    127,491.94x = 7,409,903,055.39
  5. Step 5: Solve for x
    x = 7,409,903,055.39/127,491.94
  6. Step 6: Final answer
    x = 58,120.56

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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.