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Finding the Fourth Proportional to 93,607.20, 140,410.80 and 58,615.20

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Solution

The fourth proportional to 93,607.20, 140,410.80 and 58,615.20 is: 87,922.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,607.20 : 140,410.80 = 58,615.20 : x
  2. Step 2: Convert to fraction form
    93,607.20/140,410.80 = 58,615.20/x
  3. Step 3: Cross multiply
    93,607.20x = 140,410.80 × 58,615.20
  4. Step 4: Simplify right side
    93,607.20x = 8,230,207,124.16
  5. Step 5: Solve for x
    x = 8,230,207,124.16/93,607.20
  6. Step 6: Final answer
    x = 87,922.80

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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.