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Finding the Fourth Proportional to 263,854.80, 364,119.84 and 154,937.88

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Solution

The fourth proportional to 263,854.80, 364,119.84 and 154,937.88 is: 213,814.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,854.80 : 364,119.84 = 154,937.88 : x
  2. Step 2: Convert to fraction form
    263,854.80/364,119.84 = 154,937.88/x
  3. Step 3: Cross multiply
    263,854.80x = 364,119.84 × 154,937.88
  4. Step 4: Simplify right side
    263,854.80x = 56,415,956,075.54
  5. Step 5: Solve for x
    x = 56,415,956,075.54/263,854.80
  6. Step 6: Final answer
    x = 213,814.40

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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.