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Finding the Fourth Proportional to 188,166.60, 259,665.57 and 102,125.73

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Solution

The fourth proportional to 188,166.60, 259,665.57 and 102,125.73 is: 140,931.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,166.60 : 259,665.57 = 102,125.73 : x
  2. Step 2: Convert to fraction form
    188,166.60/259,665.57 = 102,125.73/x
  3. Step 3: Cross multiply
    188,166.60x = 259,665.57 × 102,125.73
  4. Step 4: Simplify right side
    188,166.60x = 26,518,535,892.12
  5. Step 5: Solve for x
    x = 26,518,535,892.12/188,166.60
  6. Step 6: Final answer
    x = 140,931.15

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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.