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Finding the Fourth Proportional to 118,209.60, 177,314.40 and 114,929.10

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Solution

The fourth proportional to 118,209.60, 177,314.40 and 114,929.10 is: 172,393.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,209.60 : 177,314.40 = 114,929.10 : x
  2. Step 2: Convert to fraction form
    118,209.60/177,314.40 = 114,929.10/x
  3. Step 3: Cross multiply
    118,209.60x = 177,314.40 × 114,929.10
  4. Step 4: Simplify right side
    118,209.60x = 20,378,584,409.04
  5. Step 5: Solve for x
    x = 20,378,584,409.04/118,209.60
  6. Step 6: Final answer
    x = 172,393.65

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.