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Finding the Fourth Proportional to 105,077.70, 157,616.55 and 92,611.80

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Solution

The fourth proportional to 105,077.70, 157,616.55 and 92,611.80 is: 138,917.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,077.70 : 157,616.55 = 92,611.80 : x
  2. Step 2: Convert to fraction form
    105,077.70/157,616.55 = 92,611.80/x
  3. Step 3: Cross multiply
    105,077.70x = 157,616.55 × 92,611.80
  4. Step 4: Simplify right side
    105,077.70x = 14,597,152,405.29
  5. Step 5: Solve for x
    x = 14,597,152,405.29/105,077.70
  6. Step 6: Final answer
    x = 138,917.70

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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.