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Finding the Fourth Proportional to 131,858.55, 197,801.60 and 38,364.30

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Solution

The fourth proportional to 131,858.55, 197,801.60 and 38,364.30 is: 57,550.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,858.55 : 197,801.60 = 38,364.30 : x
  2. Step 2: Convert to fraction form
    131,858.55/197,801.60 = 38,364.30/x
  3. Step 3: Cross multiply
    131,858.55x = 197,801.60 × 38,364.30
  4. Step 4: Simplify right side
    131,858.55x = 7,588,519,731.06
  5. Step 5: Solve for x
    x = 7,588,519,731.06/131,858.55
  6. Step 6: Final answer
    x = 57,550.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.