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Finding the Fourth Proportional to 73,604, 101,573.92 and 40,070

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Solution

The fourth proportional to 73,604, 101,573.92 and 40,070 is: 55,296.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,604 : 101,573.92 = 40,070 : x
  2. Step 2: Convert to fraction form
    73,604/101,573.92 = 40,070/x
  3. Step 3: Cross multiply
    73,604x = 101,573.92 × 40,070
  4. Step 4: Simplify right side
    73,604x = 4,070,066,974.40
  5. Step 5: Solve for x
    x = 4,070,066,974.40/73,604
  6. Step 6: Final answer
    x = 55,296.82

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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.