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Finding the Fourth Proportional to 93,837.60, 140,756.40 and 87,276.60

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Solution

The fourth proportional to 93,837.60, 140,756.40 and 87,276.60 is: 130,914.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,837.60 : 140,756.40 = 87,276.60 : x
  2. Step 2: Convert to fraction form
    93,837.60/140,756.40 = 87,276.60/x
  3. Step 3: Cross multiply
    93,837.60x = 140,756.40 × 87,276.60
  4. Step 4: Simplify right side
    93,837.60x = 12,284,740,020.24
  5. Step 5: Solve for x
    x = 12,284,740,020.24/93,837.60
  6. Step 6: Final answer
    x = 130,914.90

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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.