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Finding the Fourth Proportional to 118,314.84, 163,274.88 and 75,873.54

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Solution

The fourth proportional to 118,314.84, 163,274.88 and 75,873.54 is: 104,705.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,314.84 : 163,274.88 = 75,873.54 : x
  2. Step 2: Convert to fraction form
    118,314.84/163,274.88 = 75,873.54/x
  3. Step 3: Cross multiply
    118,314.84x = 163,274.88 × 75,873.54
  4. Step 4: Simplify right side
    118,314.84x = 12,388,243,138.68
  5. Step 5: Solve for x
    x = 12,388,243,138.68/118,314.84
  6. Step 6: Final answer
    x = 104,705.74

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1.5x scale

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.