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Finding the Fourth Proportional to 79,087.64, 118,482.44 and 39,059.78

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Solution

The fourth proportional to 79,087.64, 118,482.44 and 39,059.78 is: 58,516.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,087.64 : 118,482.44 = 39,059.78 : x
  2. Step 2: Convert to fraction form
    79,087.64/118,482.44 = 39,059.78/x
  3. Step 3: Cross multiply
    79,087.64x = 118,482.44 × 39,059.78
  4. Step 4: Simplify right side
    79,087.64x = 4,627,897,252.55
  5. Step 5: Solve for x
    x = 4,627,897,252.55/79,087.64
  6. Step 6: Final answer
    x = 58,516.06

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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.