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Finding the Fourth Proportional to 108,472.80, 162,806.40 and 93,698.40

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Solution

The fourth proportional to 108,472.80, 162,806.40 and 93,698.40 is: 140,631.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,472.80 : 162,806.40 = 93,698.40 : x
  2. Step 2: Convert to fraction form
    108,472.80/162,806.40 = 93,698.40/x
  3. Step 3: Cross multiply
    108,472.80x = 162,806.40 × 93,698.40
  4. Step 4: Simplify right side
    108,472.80x = 15,254,699,189.76
  5. Step 5: Solve for x
    x = 15,254,699,189.76/108,472.80
  6. Step 6: Final answer
    x = 140,631.56

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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.