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Finding the Fourth Proportional to 97,792.68, 134,950.40 and 55,350.30

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Solution

The fourth proportional to 97,792.68, 134,950.40 and 55,350.30 is: 76,381.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,792.68 : 134,950.40 = 55,350.30 : x
  2. Step 2: Convert to fraction form
    97,792.68/134,950.40 = 55,350.30/x
  3. Step 3: Cross multiply
    97,792.68x = 134,950.40 × 55,350.30
  4. Step 4: Simplify right side
    97,792.68x = 7,469,545,125.12
  5. Step 5: Solve for x
    x = 7,469,545,125.12/97,792.68
  6. Step 6: Final answer
    x = 76,381.43

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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.