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Finding the Fourth Proportional to 113,775.80, 156,942.95 and 73,513.30

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Solution

The fourth proportional to 113,775.80, 156,942.95 and 73,513.30 is: 101,404.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,775.80 : 156,942.95 = 73,513.30 : x
  2. Step 2: Convert to fraction form
    113,775.80/156,942.95 = 73,513.30/x
  3. Step 3: Cross multiply
    113,775.80x = 156,942.95 × 73,513.30
  4. Step 4: Simplify right side
    113,775.80x = 11,537,394,166.24
  5. Step 5: Solve for x
    x = 11,537,394,166.24/113,775.80
  6. Step 6: Final answer
    x = 101,404.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.