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Finding the Fourth Proportional to 73,501.40, 110,138.70 and 54,693.20

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Solution

The fourth proportional to 73,501.40, 110,138.70 and 54,693.20 is: 81,955.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,501.40 : 110,138.70 = 54,693.20 : x
  2. Step 2: Convert to fraction form
    73,501.40/110,138.70 = 54,693.20/x
  3. Step 3: Cross multiply
    73,501.40x = 110,138.70 × 54,693.20
  4. Step 4: Simplify right side
    73,501.40x = 6,023,837,946.84
  5. Step 5: Solve for x
    x = 6,023,837,946.84/73,501.40
  6. Step 6: Final answer
    x = 81,955.42

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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.