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Finding the Fourth Proportional to 79,478.64, 119,250.60 and 37,899.12

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Solution

The fourth proportional to 79,478.64, 119,250.60 and 37,899.12 is: 56,864.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,478.64 : 119,250.60 = 37,899.12 : x
  2. Step 2: Convert to fraction form
    79,478.64/119,250.60 = 37,899.12/x
  3. Step 3: Cross multiply
    79,478.64x = 119,250.60 × 37,899.12
  4. Step 4: Simplify right side
    79,478.64x = 4,519,492,799.47
  5. Step 5: Solve for x
    x = 4,519,492,799.47/79,478.64
  6. Step 6: Final answer
    x = 56,864.24

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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.