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Finding the Fourth Proportional to 186,661.85, 257,593.60 and 101,778.91

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Solution

The fourth proportional to 186,661.85, 257,593.60 and 101,778.91 is: 140,455.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,661.85 : 257,593.60 = 101,778.91 : x
  2. Step 2: Convert to fraction form
    186,661.85/257,593.60 = 101,778.91/x
  3. Step 3: Cross multiply
    186,661.85x = 257,593.60 × 101,778.91
  4. Step 4: Simplify right side
    186,661.85x = 26,217,595,314.22
  5. Step 5: Solve for x
    x = 26,217,595,314.22/186,661.85
  6. Step 6: Final answer
    x = 140,455.03

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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.