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Finding the Fourth Proportional to 73,318, 101,177.76 and 43,106.72

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Solution

The fourth proportional to 73,318, 101,177.76 and 43,106.72 is: 59,486.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,318 : 101,177.76 = 43,106.72 : x
  2. Step 2: Convert to fraction form
    73,318/101,177.76 = 43,106.72/x
  3. Step 3: Cross multiply
    73,318x = 101,177.76 × 43,106.72
  4. Step 4: Simplify right side
    73,318x = 4,361,441,370.55
  5. Step 5: Solve for x
    x = 4,361,441,370.55/73,318
  6. Step 6: Final answer
    x = 59,486.64

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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.