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Finding the Fourth Proportional to 118,886.60, 164,080.28 and 73,579.12

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Solution

The fourth proportional to 118,886.60, 164,080.28 and 73,579.12 is: 101,549.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,886.60 : 164,080.28 = 73,579.12 : x
  2. Step 2: Convert to fraction form
    118,886.60/164,080.28 = 73,579.12/x
  3. Step 3: Cross multiply
    118,886.60x = 164,080.28 × 73,579.12
  4. Step 4: Simplify right side
    118,886.60x = 12,072,882,611.75
  5. Step 5: Solve for x
    x = 12,072,882,611.75/118,886.60
  6. Step 6: Final answer
    x = 101,549.57

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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.