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Finding the Fourth Proportional to 93,385.48, 140,052.78 and 31,047.88

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Solution

The fourth proportional to 93,385.48, 140,052.78 and 31,047.88 is: 46,563.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,385.48 : 140,052.78 = 31,047.88 : x
  2. Step 2: Convert to fraction form
    93,385.48/140,052.78 = 31,047.88/x
  3. Step 3: Cross multiply
    93,385.48x = 140,052.78 × 31,047.88
  4. Step 4: Simplify right side
    93,385.48x = 4,348,341,907.11
  5. Step 5: Solve for x
    x = 4,348,341,907.11/93,385.48
  6. Step 6: Final answer
    x = 46,563.36

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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.