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Finding the Fourth Proportional to 97,417.40, 146,183.70 and 71,055.80

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Solution

The fourth proportional to 97,417.40, 146,183.70 and 71,055.80 is: 106,625.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,417.40 : 146,183.70 = 71,055.80 : x
  2. Step 2: Convert to fraction form
    97,417.40/146,183.70 = 71,055.80/x
  3. Step 3: Cross multiply
    97,417.40x = 146,183.70 × 71,055.80
  4. Step 4: Simplify right side
    97,417.40x = 10,387,199,750.46
  5. Step 5: Solve for x
    x = 10,387,199,750.46/97,417.40
  6. Step 6: Final answer
    x = 106,625.71

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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.