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Finding the Fourth Proportional to 93,438.80, 140,158.20 and 53,975.60

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Solution

The fourth proportional to 93,438.80, 140,158.20 and 53,975.60 is: 80,963.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,438.80 : 140,158.20 = 53,975.60 : x
  2. Step 2: Convert to fraction form
    93,438.80/140,158.20 = 53,975.60/x
  3. Step 3: Cross multiply
    93,438.80x = 140,158.20 × 53,975.60
  4. Step 4: Simplify right side
    93,438.80x = 7,565,122,939.92
  5. Step 5: Solve for x
    x = 7,565,122,939.92/93,438.80
  6. Step 6: Final answer
    x = 80,963.40

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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.