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Finding the Fourth Proportional to 218,809.91, 301,841.98 and 150,709.77

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Solution

The fourth proportional to 218,809.91, 301,841.98 and 150,709.77 is: 207,899.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,809.91 : 301,841.98 = 150,709.77 : x
  2. Step 2: Convert to fraction form
    218,809.91/301,841.98 = 150,709.77/x
  3. Step 3: Cross multiply
    218,809.91x = 301,841.98 × 150,709.77
  4. Step 4: Simplify right side
    218,809.91x = 45,490,535,005.37
  5. Step 5: Solve for x
    x = 45,490,535,005.37/218,809.91
  6. Step 6: Final answer
    x = 207,899.79

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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.