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Finding the Fourth Proportional to 153,611.17, 211,983.85 and 89,092.85

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Solution

The fourth proportional to 153,611.17, 211,983.85 and 89,092.85 is: 122,948.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,611.17 : 211,983.85 = 89,092.85 : x
  2. Step 2: Convert to fraction form
    153,611.17/211,983.85 = 89,092.85/x
  3. Step 3: Cross multiply
    153,611.17x = 211,983.85 × 89,092.85
  4. Step 4: Simplify right side
    153,611.17x = 18,886,244,401.92
  5. Step 5: Solve for x
    x = 18,886,244,401.92/153,611.17
  6. Step 6: Final answer
    x = 122,948.38

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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.