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Finding the Fourth Proportional to 157,150.09, 216,859.98 and 85,529.89

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Solution

The fourth proportional to 157,150.09, 216,859.98 and 85,529.89 is: 118,027.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,150.09 : 216,859.98 = 85,529.89 : x
  2. Step 2: Convert to fraction form
    157,150.09/216,859.98 = 85,529.89/x
  3. Step 3: Cross multiply
    157,150.09x = 216,859.98 × 85,529.89
  4. Step 4: Simplify right side
    157,150.09x = 18,548,010,234.80
  5. Step 5: Solve for x
    x = 18,548,010,234.80/157,150.09
  6. Step 6: Final answer
    x = 118,027.36

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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.