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Finding the Fourth Proportional to 118,432.60, 177,746.10 and 114,544.60

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Solution

The fourth proportional to 118,432.60, 177,746.10 and 114,544.60 is: 171,910.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,432.60 : 177,746.10 = 114,544.60 : x
  2. Step 2: Convert to fraction form
    118,432.60/177,746.10 = 114,544.60/x
  3. Step 3: Cross multiply
    118,432.60x = 177,746.10 × 114,544.60
  4. Step 4: Simplify right side
    118,432.60x = 20,359,855,926.06
  5. Step 5: Solve for x
    x = 20,359,855,926.06/118,432.60
  6. Step 6: Final answer
    x = 171,910.91

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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.