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Finding the Fourth Proportional to 118,966.32, 164,235.60 and 93,489.12

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Solution

The fourth proportional to 118,966.32, 164,235.60 and 93,489.12 is: 129,063.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,966.32 : 164,235.60 = 93,489.12 : x
  2. Step 2: Convert to fraction form
    118,966.32/164,235.60 = 93,489.12/x
  3. Step 3: Cross multiply
    118,966.32x = 164,235.60 × 93,489.12
  4. Step 4: Simplify right side
    118,966.32x = 15,354,241,716.67
  5. Step 5: Solve for x
    x = 15,354,241,716.67/118,966.32
  6. Step 6: Final answer
    x = 129,063.77

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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.