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Finding the Fourth Proportional to 355,090.30, 532,181.85 and 144,490.30

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Solution

The fourth proportional to 355,090.30, 532,181.85 and 144,490.30 is: 216,550.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,090.30 : 532,181.85 = 144,490.30 : x
  2. Step 2: Convert to fraction form
    355,090.30/532,181.85 = 144,490.30/x
  3. Step 3: Cross multiply
    355,090.30x = 532,181.85 × 144,490.30
  4. Step 4: Simplify right side
    355,090.30x = 76,895,115,161.06
  5. Step 5: Solve for x
    x = 76,895,115,161.06/355,090.30
  6. Step 6: Final answer
    x = 216,550.87

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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.