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Finding the Fourth Proportional to 93,801.60, 140,703.84 and 31,472.64

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Solution

The fourth proportional to 93,801.60, 140,703.84 and 31,472.64 is: 47,209.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,801.60 : 140,703.84 = 31,472.64 : x
  2. Step 2: Convert to fraction form
    93,801.60/140,703.84 = 31,472.64/x
  3. Step 3: Cross multiply
    93,801.60x = 140,703.84 × 31,472.64
  4. Step 4: Simplify right side
    93,801.60x = 4,428,321,302.94
  5. Step 5: Solve for x
    x = 4,428,321,302.94/93,801.60
  6. Step 6: Final answer
    x = 47,209.44

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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.