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Finding the Fourth Proportional to 97,488.60, 134,536.71 and 55,047.43

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Solution

The fourth proportional to 97,488.60, 134,536.71 and 55,047.43 is: 75,966.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,488.60 : 134,536.71 = 55,047.43 : x
  2. Step 2: Convert to fraction form
    97,488.60/134,536.71 = 55,047.43/x
  3. Step 3: Cross multiply
    97,488.60x = 134,536.71 × 55,047.43
  4. Step 4: Simplify right side
    97,488.60x = 7,405,900,126.16
  5. Step 5: Solve for x
    x = 7,405,900,126.16/97,488.60
  6. Step 6: Final answer
    x = 75,966.83

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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.