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Finding the Fourth Proportional to 97,422.60, 134,429.70 and 54,396.84

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Solution

The fourth proportional to 97,422.60, 134,429.70 and 54,396.84 is: 75,060.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,422.60 : 134,429.70 = 54,396.84 : x
  2. Step 2: Convert to fraction form
    97,422.60/134,429.70 = 54,396.84/x
  3. Step 3: Cross multiply
    97,422.60x = 134,429.70 × 54,396.84
  4. Step 4: Simplify right side
    97,422.60x = 7,312,550,882.15
  5. Step 5: Solve for x
    x = 7,312,550,882.15/97,422.60
  6. Step 6: Final answer
    x = 75,060.11

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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.