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Finding the Fourth Proportional to 127,742.76, 191,614.14 and 48,881.16

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Solution

The fourth proportional to 127,742.76, 191,614.14 and 48,881.16 is: 73,321.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,742.76 : 191,614.14 = 48,881.16 : x
  2. Step 2: Convert to fraction form
    127,742.76/191,614.14 = 48,881.16/x
  3. Step 3: Cross multiply
    127,742.76x = 191,614.14 × 48,881.16
  4. Step 4: Simplify right side
    127,742.76x = 9,366,321,435.60
  5. Step 5: Solve for x
    x = 9,366,321,435.60/127,742.76
  6. Step 6: Final answer
    x = 73,321.74

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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.