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Finding the Fourth Proportional to 237,090.72, 355,645.44 and 103,905.12

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Solution

The fourth proportional to 237,090.72, 355,645.44 and 103,905.12 is: 155,861.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    237,090.72 : 355,645.44 = 103,905.12 : x
  2. Step 2: Convert to fraction form
    237,090.72/355,645.44 = 103,905.12/x
  3. Step 3: Cross multiply
    237,090.72x = 355,645.44 × 103,905.12
  4. Step 4: Simplify right side
    237,090.72x = 36,953,382,120.65
  5. Step 5: Solve for x
    x = 36,953,382,120.65/237,090.72
  6. Step 6: Final answer
    x = 155,861.78

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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.