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Finding the Fourth Proportional to 73,094.94, 100,853.91 and 42,878.70

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Solution

The fourth proportional to 73,094.94, 100,853.91 and 42,878.70 is: 59,162.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,094.94 : 100,853.91 = 42,878.70 : x
  2. Step 2: Convert to fraction form
    73,094.94/100,853.91 = 42,878.70/x
  3. Step 3: Cross multiply
    73,094.94x = 100,853.91 × 42,878.70
  4. Step 4: Simplify right side
    73,094.94x = 4,324,484,550.72
  5. Step 5: Solve for x
    x = 4,324,484,550.72/73,094.94
  6. Step 6: Final answer
    x = 59,162.57

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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.