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Finding the Fourth Proportional to 153,476.53, 211,794.42 and 85,493.41

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Solution

The fourth proportional to 153,476.53, 211,794.42 and 85,493.41 is: 117,979.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,476.53 : 211,794.42 = 85,493.41 : x
  2. Step 2: Convert to fraction form
    153,476.53/211,794.42 = 85,493.41/x
  3. Step 3: Cross multiply
    153,476.53x = 211,794.42 × 85,493.41
  4. Step 4: Simplify right side
    153,476.53x = 18,107,027,184.77
  5. Step 5: Solve for x
    x = 18,107,027,184.77/153,476.53
  6. Step 6: Final answer
    x = 117,979.13

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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.