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Finding the Fourth Proportional to 289,096.64, 433,537.20 and 99,504.08

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Solution

The fourth proportional to 289,096.64, 433,537.20 and 99,504.08 is: 149,219.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,096.64 : 433,537.20 = 99,504.08 : x
  2. Step 2: Convert to fraction form
    289,096.64/433,537.20 = 99,504.08/x
  3. Step 3: Cross multiply
    289,096.64x = 433,537.20 × 99,504.08
  4. Step 4: Simplify right side
    289,096.64x = 43,138,720,231.78
  5. Step 5: Solve for x
    x = 43,138,720,231.78/289,096.64
  6. Step 6: Final answer
    x = 149,219.03

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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.