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Finding the Fourth Proportional to 118,015.20, 176,907.60 and 105,573.60

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Solution

The fourth proportional to 118,015.20, 176,907.60 and 105,573.60 is: 158,257.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,015.20 : 176,907.60 = 105,573.60 : x
  2. Step 2: Convert to fraction form
    118,015.20/176,907.60 = 105,573.60/x
  3. Step 3: Cross multiply
    118,015.20x = 176,907.60 × 105,573.60
  4. Step 4: Simplify right side
    118,015.20x = 18,676,772,199.36
  5. Step 5: Solve for x
    x = 18,676,772,199.36/118,015.20
  6. Step 6: Final answer
    x = 158,257.34

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1.5x scale

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.