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Finding the Fourth Proportional to 202,512.60, 279,461.70 and 111,867.16

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Solution

The fourth proportional to 202,512.60, 279,461.70 and 111,867.16 is: 154,373.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,512.60 : 279,461.70 = 111,867.16 : x
  2. Step 2: Convert to fraction form
    202,512.60/279,461.70 = 111,867.16/x
  3. Step 3: Cross multiply
    202,512.60x = 279,461.70 × 111,867.16
  4. Step 4: Simplify right side
    202,512.60x = 31,262,586,707.77
  5. Step 5: Solve for x
    x = 31,262,586,707.77/202,512.60
  6. Step 6: Final answer
    x = 154,373.54

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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.