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Finding the Fourth Proportional to 97,616.79, 146,369.70 and 38,420.37

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Solution

The fourth proportional to 97,616.79, 146,369.70 and 38,420.37 is: 57,608.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,616.79 : 146,369.70 = 38,420.37 : x
  2. Step 2: Convert to fraction form
    97,616.79/146,369.70 = 38,420.37/x
  3. Step 3: Cross multiply
    97,616.79x = 146,369.70 × 38,420.37
  4. Step 4: Simplify right side
    97,616.79x = 5,623,578,030.79
  5. Step 5: Solve for x
    x = 5,623,578,030.79/97,616.79
  6. Step 6: Final answer
    x = 57,608.72

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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.