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Finding the Fourth Proportional to 130,735.92, 180,407.99 and 73,369.88

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Solution

The fourth proportional to 130,735.92, 180,407.99 and 73,369.88 is: 101,246.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,735.92 : 180,407.99 = 73,369.88 : x
  2. Step 2: Convert to fraction form
    130,735.92/180,407.99 = 73,369.88/x
  3. Step 3: Cross multiply
    130,735.92x = 180,407.99 × 73,369.88
  4. Step 4: Simplify right side
    130,735.92x = 13,236,512,210.49
  5. Step 5: Solve for x
    x = 13,236,512,210.49/130,735.92
  6. Step 6: Final answer
    x = 101,246.18

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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.