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Finding the Fourth Proportional to 88,431.60, 122,037.80 and 48,147.56

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Solution

The fourth proportional to 88,431.60, 122,037.80 and 48,147.56 is: 66,444.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,431.60 : 122,037.80 = 48,147.56 : x
  2. Step 2: Convert to fraction form
    88,431.60/122,037.80 = 48,147.56/x
  3. Step 3: Cross multiply
    88,431.60x = 122,037.80 × 48,147.56
  4. Step 4: Simplify right side
    88,431.60x = 5,875,822,297.77
  5. Step 5: Solve for x
    x = 5,875,822,297.77/88,431.60
  6. Step 6: Final answer
    x = 66,444.83

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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.