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Finding the Fourth Proportional to 93,979.90, 140,990.62 and 46,620.76

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Solution

The fourth proportional to 93,979.90, 140,990.62 and 46,620.76 is: 69,941.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,979.90 : 140,990.62 = 46,620.76 : x
  2. Step 2: Convert to fraction form
    93,979.90/140,990.62 = 46,620.76/x
  3. Step 3: Cross multiply
    93,979.90x = 140,990.62 × 46,620.76
  4. Step 4: Simplify right side
    93,979.90x = 6,573,089,212.36
  5. Step 5: Solve for x
    x = 6,573,089,212.36/93,979.90
  6. Step 6: Final answer
    x = 69,941.43

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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.