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Finding the Fourth Proportional to 93,993.96, 129,734.28 and 63,829.56

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Solution

The fourth proportional to 93,993.96, 129,734.28 and 63,829.56 is: 88,100.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,993.96 : 129,734.28 = 63,829.56 : x
  2. Step 2: Convert to fraction form
    93,993.96/129,734.28 = 63,829.56/x
  3. Step 3: Cross multiply
    93,993.96x = 129,734.28 × 63,829.56
  4. Step 4: Simplify right side
    93,993.96x = 8,280,882,009.32
  5. Step 5: Solve for x
    x = 8,280,882,009.32/93,993.96
  6. Step 6: Final answer
    x = 88,100.15

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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.