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Finding the Fourth Proportional to 125,125.92, 172,676.27 and 68,537.30

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Solution

The fourth proportional to 125,125.92, 172,676.27 and 68,537.30 is: 94,582.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,125.92 : 172,676.27 = 68,537.30 : x
  2. Step 2: Convert to fraction form
    125,125.92/172,676.27 = 68,537.30/x
  3. Step 3: Cross multiply
    125,125.92x = 172,676.27 × 68,537.30
  4. Step 4: Simplify right side
    125,125.92x = 11,834,764,627.83
  5. Step 5: Solve for x
    x = 11,834,764,627.83/125,125.92
  6. Step 6: Final answer
    x = 94,582.84

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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.