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Finding the Fourth Proportional to 97,410.50, 134,425.16 and 54,390.65

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Solution

The fourth proportional to 97,410.50, 134,425.16 and 54,390.65 is: 75,058.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,410.50 : 134,425.16 = 54,390.65 : x
  2. Step 2: Convert to fraction form
    97,410.50/134,425.16 = 54,390.65/x
  3. Step 3: Cross multiply
    97,410.50x = 134,425.16 × 54,390.65
  4. Step 4: Simplify right side
    97,410.50x = 7,311,470,884.67
  5. Step 5: Solve for x
    x = 7,311,470,884.67/97,410.50
  6. Step 6: Final answer
    x = 75,058.35

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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.