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Finding the Fourth Proportional to 202,220.64, 279,059.85 and 111,585.15

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Solution

The fourth proportional to 202,220.64, 279,059.85 and 111,585.15 is: 153,984.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,220.64 : 279,059.85 = 111,585.15 : x
  2. Step 2: Convert to fraction form
    202,220.64/279,059.85 = 111,585.15/x
  3. Step 3: Cross multiply
    202,220.64x = 279,059.85 × 111,585.15
  4. Step 4: Simplify right side
    202,220.64x = 31,138,935,221.23
  5. Step 5: Solve for x
    x = 31,138,935,221.23/202,220.64
  6. Step 6: Final answer
    x = 153,984.95

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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.