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Finding the Fourth Proportional to 103,975.92, 156,071.55 and 64,023.66

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Solution

The fourth proportional to 103,975.92, 156,071.55 and 64,023.66 is: 96,101.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,975.92 : 156,071.55 = 64,023.66 : x
  2. Step 2: Convert to fraction form
    103,975.92/156,071.55 = 64,023.66/x
  3. Step 3: Cross multiply
    103,975.92x = 156,071.55 × 64,023.66
  4. Step 4: Simplify right side
    103,975.92x = 9,992,271,852.87
  5. Step 5: Solve for x
    x = 9,992,271,852.87/103,975.92
  6. Step 6: Final answer
    x = 96,101.79

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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.