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Finding the Fourth Proportional to 93,813.80, 140,732.86 and 30,611.68

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Solution

The fourth proportional to 93,813.80, 140,732.86 and 30,611.68 is: 45,921.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,813.80 : 140,732.86 = 30,611.68 : x
  2. Step 2: Convert to fraction form
    93,813.80/140,732.86 = 30,611.68/x
  3. Step 3: Cross multiply
    93,813.80x = 140,732.86 × 30,611.68
  4. Step 4: Simplify right side
    93,813.80x = 4,308,069,275.80
  5. Step 5: Solve for x
    x = 4,308,069,275.80/93,813.80
  6. Step 6: Final answer
    x = 45,921.49

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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.