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Finding the Fourth Proportional to 118,797.84, 178,159.50 and 38,817.58

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Solution

The fourth proportional to 118,797.84, 178,159.50 and 38,817.58 is: 58,214.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,797.84 : 178,159.50 = 38,817.58 : x
  2. Step 2: Convert to fraction form
    118,797.84/178,159.50 = 38,817.58/x
  3. Step 3: Cross multiply
    118,797.84x = 178,159.50 × 38,817.58
  4. Step 4: Simplify right side
    118,797.84x = 6,915,720,644.01
  5. Step 5: Solve for x
    x = 6,915,720,644.01/118,797.84
  6. Step 6: Final answer
    x = 58,214.20

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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.