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Finding the Fourth Proportional to 97,605.34, 134,697.90 and 55,166.56

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Solution

The fourth proportional to 97,605.34, 134,697.90 and 55,166.56 is: 76,131.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,605.34 : 134,697.90 = 55,166.56 : x
  2. Step 2: Convert to fraction form
    97,605.34/134,697.90 = 55,166.56/x
  3. Step 3: Cross multiply
    97,605.34x = 134,697.90 × 55,166.56
  4. Step 4: Simplify right side
    97,605.34x = 7,430,819,782.22
  5. Step 5: Solve for x
    x = 7,430,819,782.22/97,605.34
  6. Step 6: Final answer
    x = 76,131.28

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1.5x scale

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.