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Finding the Fourth Proportional to 118,093.80, 177,140.70 and 70,854.60

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Solution

The fourth proportional to 118,093.80, 177,140.70 and 70,854.60 is: 106,281.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,093.80 : 177,140.70 = 70,854.60 : x
  2. Step 2: Convert to fraction form
    118,093.80/177,140.70 = 70,854.60/x
  3. Step 3: Cross multiply
    118,093.80x = 177,140.70 × 70,854.60
  4. Step 4: Simplify right side
    118,093.80x = 12,551,233,442.22
  5. Step 5: Solve for x
    x = 12,551,233,442.22/118,093.80
  6. Step 6: Final answer
    x = 106,281.90

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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.