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Finding the Fourth Proportional to 186,383.76, 257,212.52 and 101,500.72

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Solution

The fourth proportional to 186,383.76, 257,212.52 and 101,500.72 is: 140,072.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,383.76 : 257,212.52 = 101,500.72 : x
  2. Step 2: Convert to fraction form
    186,383.76/257,212.52 = 101,500.72/x
  3. Step 3: Cross multiply
    186,383.76x = 257,212.52 × 101,500.72
  4. Step 4: Simplify right side
    186,383.76x = 26,107,255,973.01
  5. Step 5: Solve for x
    x = 26,107,255,973.01/186,383.76
  6. Step 6: Final answer
    x = 140,072.59

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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.