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Finding the Fourth Proportional to 93,515.60, 140,273.40 and 76,894.40

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Solution

The fourth proportional to 93,515.60, 140,273.40 and 76,894.40 is: 115,341.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,515.60 : 140,273.40 = 76,894.40 : x
  2. Step 2: Convert to fraction form
    93,515.60/140,273.40 = 76,894.40/x
  3. Step 3: Cross multiply
    93,515.60x = 140,273.40 × 76,894.40
  4. Step 4: Simplify right side
    93,515.60x = 10,786,238,928.96
  5. Step 5: Solve for x
    x = 10,786,238,928.96/93,515.60
  6. Step 6: Final answer
    x = 115,341.60

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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.