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Finding the Fourth Proportional to 395,365.55, 593,071.30 and 111,078.26

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Solution

The fourth proportional to 395,365.55, 593,071.30 and 111,078.26 is: 166,623.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,365.55 : 593,071.30 = 111,078.26 : x
  2. Step 2: Convert to fraction form
    395,365.55/593,071.30 = 111,078.26/x
  3. Step 3: Cross multiply
    395,365.55x = 593,071.30 × 111,078.26
  4. Step 4: Simplify right side
    395,365.55x = 65,877,329,125.46
  5. Step 5: Solve for x
    x = 65,877,329,125.46/395,365.55
  6. Step 6: Final answer
    x = 166,623.85

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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.