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Finding the Fourth Proportional to 356,859.15, 535,285.08 and 120,200.24

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Solution

The fourth proportional to 356,859.15, 535,285.08 and 120,200.24 is: 180,299.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,859.15 : 535,285.08 = 120,200.24 : x
  2. Step 2: Convert to fraction form
    356,859.15/535,285.08 = 120,200.24/x
  3. Step 3: Cross multiply
    356,859.15x = 535,285.08 × 120,200.24
  4. Step 4: Simplify right side
    356,859.15x = 64,341,392,407.99
  5. Step 5: Solve for x
    x = 64,341,392,407.99/356,859.15
  6. Step 6: Final answer
    x = 180,299.12

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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.