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Finding the Fourth Proportional to 152,914.35, 211,021.80 and 85,846.35

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Solution

The fourth proportional to 152,914.35, 211,021.80 and 85,846.35 is: 118,467.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,914.35 : 211,021.80 = 85,846.35 : x
  2. Step 2: Convert to fraction form
    152,914.35/211,021.80 = 85,846.35/x
  3. Step 3: Cross multiply
    152,914.35x = 211,021.80 × 85,846.35
  4. Step 4: Simplify right side
    152,914.35x = 18,115,451,300.43
  5. Step 5: Solve for x
    x = 18,115,451,300.43/152,914.35
  6. Step 6: Final answer
    x = 118,467.96

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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.