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Finding the Fourth Proportional to 172,184.58, 258,281.46 and 53,855.91

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Solution

The fourth proportional to 172,184.58, 258,281.46 and 53,855.91 is: 80,785.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,184.58 : 258,281.46 = 53,855.91 : x
  2. Step 2: Convert to fraction form
    172,184.58/258,281.46 = 53,855.91/x
  3. Step 3: Cross multiply
    172,184.58x = 258,281.46 × 53,855.91
  4. Step 4: Simplify right side
    172,184.58x = 13,909,983,064.43
  5. Step 5: Solve for x
    x = 13,909,983,064.43/172,184.58
  6. Step 6: Final answer
    x = 80,785.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.