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Finding the Fourth Proportional to 202,980.33, 280,108.98 and 112,336.34

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Solution

The fourth proportional to 202,980.33, 280,108.98 and 112,336.34 is: 155,022.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,980.33 : 280,108.98 = 112,336.34 : x
  2. Step 2: Convert to fraction form
    202,980.33/280,108.98 = 112,336.34/x
  3. Step 3: Cross multiply
    202,980.33x = 280,108.98 × 112,336.34
  4. Step 4: Simplify right side
    202,980.33x = 31,466,416,213.79
  5. Step 5: Solve for x
    x = 31,466,416,213.79/202,980.33
  6. Step 6: Final answer
    x = 155,022.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.