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Finding the Fourth Proportional to 88,429.92, 122,043.87 and 52,139.58

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Solution

The fourth proportional to 88,429.92, 122,043.87 and 52,139.58 is: 71,958.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,429.92 : 122,043.87 = 52,139.58 : x
  2. Step 2: Convert to fraction form
    88,429.92/122,043.87 = 52,139.58/x
  3. Step 3: Cross multiply
    88,429.92x = 122,043.87 × 52,139.58
  4. Step 4: Simplify right side
    88,429.92x = 6,363,316,123.37
  5. Step 5: Solve for x
    x = 6,363,316,123.37/88,429.92
  6. Step 6: Final answer
    x = 71,958.86

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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.