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Finding the Fourth Proportional to 365,145.68, 547,712.56 and 140,554.88

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Solution

The fourth proportional to 365,145.68, 547,712.56 and 140,554.88 is: 210,830.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    365,145.68 : 547,712.56 = 140,554.88 : x
  2. Step 2: Convert to fraction form
    365,145.68/547,712.56 = 140,554.88/x
  3. Step 3: Cross multiply
    365,145.68x = 547,712.56 × 140,554.88
  4. Step 4: Simplify right side
    365,145.68x = 76,983,673,145.29
  5. Step 5: Solve for x
    x = 76,983,673,145.29/365,145.68
  6. Step 6: Final answer
    x = 210,830.03

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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.