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Finding the Fourth Proportional to 70,424.28, 97,153.02 and 40,599

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Solution

The fourth proportional to 70,424.28, 97,153.02 and 40,599 is: 56,007.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,424.28 : 97,153.02 = 40,599 : x
  2. Step 2: Convert to fraction form
    70,424.28/97,153.02 = 40,599/x
  3. Step 3: Cross multiply
    70,424.28x = 97,153.02 × 40,599
  4. Step 4: Simplify right side
    70,424.28x = 3,944,315,458.98
  5. Step 5: Solve for x
    x = 3,944,315,458.98/70,424.28
  6. Step 6: Final answer
    x = 56,007.89

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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.