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Finding the Fourth Proportional to 163,921.92, 245,798.28 and 75,099.30

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Solution

The fourth proportional to 163,921.92, 245,798.28 and 75,099.30 is: 112,610.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,921.92 : 245,798.28 = 75,099.30 : x
  2. Step 2: Convert to fraction form
    163,921.92/245,798.28 = 75,099.30/x
  3. Step 3: Cross multiply
    163,921.92x = 245,798.28 × 75,099.30
  4. Step 4: Simplify right side
    163,921.92x = 18,459,278,769.20
  5. Step 5: Solve for x
    x = 18,459,278,769.20/163,921.92
  6. Step 6: Final answer
    x = 112,610.19

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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.