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Finding the Fourth Proportional to 153,496.91, 211,841.24 and 85,524.95

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Solution

The fourth proportional to 153,496.91, 211,841.24 and 85,524.95 is: 118,033.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,496.91 : 211,841.24 = 85,524.95 : x
  2. Step 2: Convert to fraction form
    153,496.91/211,841.24 = 85,524.95/x
  3. Step 3: Cross multiply
    153,496.91x = 211,841.24 × 85,524.95
  4. Step 4: Simplify right side
    153,496.91x = 18,117,709,972.11
  5. Step 5: Solve for x
    x = 18,117,709,972.11/153,496.91
  6. Step 6: Final answer
    x = 118,033.06

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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.