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Finding the Fourth Proportional to 93,414.93, 140,122.94 and 76,931.97

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Solution

The fourth proportional to 93,414.93, 140,122.94 and 76,931.97 is: 115,398.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,414.93 : 140,122.94 = 76,931.97 : x
  2. Step 2: Convert to fraction form
    93,414.93/140,122.94 = 76,931.97/x
  3. Step 3: Cross multiply
    93,414.93x = 140,122.94 × 76,931.97
  4. Step 4: Simplify right side
    93,414.93x = 10,779,933,431.73
  5. Step 5: Solve for x
    x = 10,779,933,431.73/93,414.93
  6. Step 6: Final answer
    x = 115,398.40

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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.