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Finding the Fourth Proportional to 134,588.60, 185,729.82 and 74,164.82

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Solution

The fourth proportional to 134,588.60, 185,729.82 and 74,164.82 is: 102,346.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,588.60 : 185,729.82 = 74,164.82 : x
  2. Step 2: Convert to fraction form
    134,588.60/185,729.82 = 74,164.82/x
  3. Step 3: Cross multiply
    134,588.60x = 185,729.82 × 74,164.82
  4. Step 4: Simplify right side
    134,588.60x = 13,774,618,668.93
  5. Step 5: Solve for x
    x = 13,774,618,668.93/134,588.60
  6. Step 6: Final answer
    x = 102,346.10

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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.